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    1. On 2024-04-27 22:04:26, user Linette Roungchun wrote:

      I am a TSW sufferer and this work is important. I have suffered with TSW on and off since the young age of 3, so to see the science backing up the fact that TSW is in fact, a separate entity from Eczema is so validating and healing. Huge thank you to Kelly, Kathy, and Dr. Ian Myles!

    2. On 2024-04-28 00:05:10, user pfwindsor wrote:

      Thank you for the opportunity to comment on this excellent TSW study. I am not a scientist, but have more than 10 years of personal experience with TSW and have studied and published material through the American Academy of Dermatology. I also moderated ITSAN’s online forum for several years where I reviewed thousands of posts and responded to thousands of questions about TSW. I am currently involved with ITSAN research advocacy and would be happy to offer additional input.

      Line 33 and Line 66 refer to “prolonged exposure” and “longterm use” of TCS. While my own experience with TSW involves longterm use of TCS, the anecdotal data suggests that some TSW cases follow a short term course of TCS treatment, such as for poison oak. Others report TSW symptoms emerging after decades of TCS use. Our theories are centered around multiple variables for susceptibility to TSW including, but not limited to length of use. We also considered potency, quantity and length of exposure and areas of application. Your study doesn’t seem to address these other potentially significant variables.

      Line 67 further states that TSW is related to “abrupt cessation” of TCS use. This may be the case for your small study cohort, but it has not been studied or established within the TSW community.

      Line 73 -74 states that “improvement is seen through avoidance of TCS therapy”. This is misleading. Overwhelming anecdotal evidence suggests that TSW symptoms that emerge after cessation of TCS become more acute before they resolve.

      Line 306-307 suggests a threshold of 4 months of TCS exposure. Is this an arbitrary threshold identified for purposes of your study or is there a source that proposes or establishes this threshold? I am not familiar with any particular exposure timeframe associated with a risk of developing TSW. In fact, given the anecdotal evidence of TSW with short term exposure, this may not be a valid metric.

    3. On 2024-04-28 21:04:46, user Marly Peel wrote:

      PLEASE! PLEASE! PLEASE do more research & acknowledgement of this TERRIBLE problem! I just recently discovered info on this & it all matches my symptoms exactly. Imagine a horrific itch that you cannot scratch enough to make it STOP! I don't think I've ever been this close to panic as I have during those times. There's no way to sleep or rest AT ALL when this is happening. That doesn't even include the flaking, shedding, red & raw areas, irritated & antsy feelings one can have. WE NEED HELP! Plus, there needs to be a HUGE WARNING included with every top.steroid...that doctors know about & take to heart. Top.steroids might be a quick "fix"...but they DO NOTHING to address the underlying reason for the problem in the first place. It's time for common sense to COME HOME!

    4. On 2024-04-27 16:09:01, user Alicia F. wrote:

      As someone who is 19 months into TSW, this research is SO important. It helps us get one step closer to finding a treatment and understanding how our bodies are affected by topical steroids.

    5. On 2024-04-27 18:39:09, user Haley DelPlato wrote:

      As a young adult whose life has been put on hold for the past 3 years due to Topical Steroid Withdrawal, I can't thank you enough for this work!

      Seeing studies about TSW not only helps validate my pain that so many medical professionals have dismissed, but also contributes greatly to advancements in dermatopathology looking forward. The current stigma that makes TSW such a controversial concept NEEDS to be eradiated, a complex task that ultimately relies on substantiated clinical proof to combat misinformation. Unfortunately, the current scope of dermatopathology has kept so many folks unaware of TSW and trapped in harmful cycles of topical corticosteroid addiction. I hope this will be the first of many legitimate works seeking to uncover the truths about this tragic condition so future generations will be believed, treated, and cared for with dignity, in ways the current dermatological standards simply haven't allowed for.

      Appreciate the strides this study has taken toward a more compassionate reality for TSW sufferers!

    6. On 2024-04-28 19:43:09, user Laura Mihalidesz wrote:

      I am a TSW sufferer and made a signifacant change to the worse in my condition when TS were introduced to my life 30 years ago, stopping the usage a age 26 and going into TSW the symptoms are uncoparable to eczema. This study is important to understand what harm can TS cause in the long run and after 9 years in TSW I still suffer from symptoms. The importnce of this research is not a question but answer to many patient's questions and finding and developing treatment methods.

    7. On 2024-05-07 17:04:04, user Katy Ross wrote:

      There is a current flawed premise that ‘adherence’ to steroid treatment is a good idea and anything querying whether that’s a good idea is deemed to be a phobia, as opposed to a clear, rational and well reasoned concern.

      I am out the other side of topical steroid withdrawal syndrome, and have lost a lot to the trauma it brings (in all matter of ways). Sufferers like me are desperate for science-backed research, and it’s great to see progress here. It will be fantastic when a diagnostic code has been approved and further research is available to differentiate TSW from other skin conditions so that patients can be acknowledged and treated appropriately.

      The former Chair of the British Dermatology Council said that as many as 1 in 10 patients may have TSW and it may be seriously under-diagnosed, and the hashtag #TSW has racked up more than one billion views on TikTok - I applaud anyone who’s working towards ending this huge amount of unnecessary suffering.

    8. On 2024-05-10 04:50:19, user Kaitlin Lee wrote:

      Thank you for this long overdue research. It gives me hope that in the near future TSW will be universally diagnosable, treatable, and most importantly, prevented. I have had eczema for ten years, just a few patches here and there, which never interfered with my livelihood. Now 5 months into TSW, so many things have been put on hold for me. People suffering from TSW need treatment and support and medical professionals need to start acknowledging this condition.

    1. On 2024-04-30 16:10:19, user Cameron Daniels wrote:

      Hello! My name is Cameron Daniels and I am a Undergraduate Student at Sam Houston State University. As part of a class project we were told to pick a preprint and provide the authors with relevant comments that could help their study. I really enjoyed reading your study and learning about new data collection techniques. Here are my comments on your paper that could help you improve the paper:

      * List the number of cycles for the first round of PCR in the patient samples. You did it for the in vitro experiment, but you must've forgotten about it in the patient one. The number of PCR cycles helps to be able to replicate your experiment and also see if too many cycles were run because the more cycles that occur leads to the more mistakes, chimeras, and faulty sample reads. Consider looking at this article to validate my response: Sze MA, Schloss PD.2019.The Impact of DNA Polymerase and Number of Rounds of Amplification in PCR on 16S rRNA Gene Sequence Data. mSphere4:10.1128/msphere.00163-19.https://doi.org/10.1128/msphere.001...

      * Specify filtering for chimeras and PCR errors, which is a must to ensure accurate data.

      * List the number of sample reads for the ASV units. The sample reads will help understand your data better.

      * Make sure to include coverage measures and do it before filtering of singletons. Calculating Good's Coverage or Chao1 helps to ensure that representative sampling occurred.

      * Great introductory paragraphs but seems to have many long run-on sentences. Consider breaking up those sentences for readability.

      * A preserving agent is mentioned numerous times as important to capsule function. What is this agent and what concentration?

      * Fig4A visualizes beta diversity. Should also use an appropriate statistical test, such as ANOVA, too determine if the community compositions are significantly different with probiotic addition.

      * The probiotic contains two specific strains, while the microbiome data is from V3-V4 sequencing, and so cannot identify at the species or strain level.

      * An increase in Lactobacillus or Bifidobacterium is expected for the probiotic-treated patients. What would be more interesting is to analyze if certain other taxa are significantly increased or decreased in abundance by the probiotic strains, as the question of how those two strains affect the rest of the community is scientifically important and would enhance the literature.

      * Fig5 and 6 show that stool sampling vs capsule are different. Authors also need to include analysis to show that capsule and endoscopy are not different, since capsules are proposed as a non-invasive alternative.

    1. On 2024-06-08 00:47:24, user Renzo Huber wrote:

      The manuscript entitled “Laminar multi-contrast fMRI at 7T allows differentiation of neuronal excitation and inhibition underlying positive and negative BOLD responses” is a methods paper that estimated metabolic changes (CMRO2) across cortical layers.

      The subject matter is relevant for the field. (layer-)fMRI suffers from the interpretability challenge of ‘only’ capturing an indirect measure of neural activity. This study aims to estimate neural energy demand more directly with a newly re-implemented multi-contrast sequence of CBV, CBF, and BOLD.

      The method is benchmarked on previously established tasks (finger tapping) and applied on visual retinotopic stimuly.<br /> The study is clearly described and the results on positive responses look robust and convincing.<br /> The results on negative responses are weak and less clear and less convincing, though. <br /> One advantage of this study compared to previous laminar CMRO2 studies is that it does not rely on a Grubb coefficient that relates CBV and CBF. Instead, the study at hand measures both parameters concomitantly.

      There are some model assumptions that are not really justified (detailed below).

      I recommend the editors to publish this manuscript given the authors make a few small revisions.

      Detailed comments are below:

      1.) The Davis model on CMRO2 estimation is based on many assumptions that might not be valid for the spatial scale of laminar fMRI with GRASE. I believe the authors could spell out the assumptions that they are making and discuss if and how much they matter for the conclusions.

      1a) The Davis model is based on the Fick’s principle. This assumes that delivered oxygen (via CBF) is either (i) sitting in the voxel -CBV , (ii) metabolized -CMRO2 or (iii) drained away - BOLD. Its a mass-balance principle. This assumption is valid for conventional 3mm voxels that cover the entire vascular tree. But for laminar resolution this is not valid anymore. The exchange (CBF) is happening in different layers than the draining (BOLD). So in superficial voxels, when there is a BOLD signal change without any CBV or CBF change, the Davis model results in unphysiological results.

      1b) The Davis model is solely parametrizing venous CBV that is contributing to the BOLD signal. The Davis model does not include arterial CBV. In the study at hand, the authors take VASO and it’s estimation of total CBV, in the equation that is meant for venous CBV only. Given that venous CBV is weaker, slower, and has a different sensitivity to superficial layers [Huber 2014 10.1016/j.neuroimage.2014.04.022], this can result in skewed estimations of CMRO2. Previous studies on laminar CMRO2 have used a scaling factor to account for this [Guidi 2016 10.1016/j.neuroimage.2016.06.030]. The study at hand does not account for the mismatch between total CBV and venous CBV.

      1c) The power law that equates BOLD signal changes with oxygenation changes is originally estimated based on a supralinear effect: “a linear large vessel component is combined with small vessel contributions, which tend toward a quadratic effect on relaxivity according to the Luz-Meiboom model for diffusion-mediated exchange on the capillary scale” (Davs paper 1998). In my understanding, this has always been applied with gradient echo BOLD. In the study at hand, the authors apply the same relationship to GRASE BOLD. Based on modeling work in [Scheffler 2021, https://doi.org/10.1002/mrm...], the vessel sensitivity and the relationship between intra and extravascular BOLD is dependent on vessel radius and flip angle. This is different from GE-BOLD which does not have these dependencies. This makes me wonder if it's justified to use an universal beta value in the Davis model for GRASE BOLD. Maybe beta varies a lot across layers and areas?

      2.) The study by Bohrhaus et al 2023 also used laminar CBV, CBF and BOLD to estimate CMRO2 with a layer peak that seems much more superficial (monkeys) than the results shown here. The authors could acknowledge that this study exists and include it in the reference list?

      Bohraus, Y., Merkle, H., Logothetis, N.K., Goense, J., 2023. Laminar differences in functional oxygen metabolism in monkey visual cortex measured with calibrated fMRI. Cell Reports 42, 113341. https://doi.org/10.1016/j.c...

      3.) It seems that the profiles in Figs. 3,4 are group results. It is not clear if the corresponding maps are single participant maps. Are the inflated brains in Fig. 4 averages in FS-average?

      4.) It is not clear to me to which experiment the results in Fig. 3 refer to. The heading suggests its experiment 1. The figure caption seems to suggest it refers to experiment 2.

      5.) I think it would be helpful to add a zero line in Fig. 5d. It's not clear if the author hypothesizes that the superficial layer sees negative changes or if the deeper layers see positive changes.

      6.) I found Fig. 8 a bit misleading. The scanner plots are mixing many different sources of variance. The spread across points might contain true spatial patterns as well as intersubject variability e.g. different fMRI gain due to different venous baseline oxygenation [Lu,et al., 2008. https://doi.org/10.1002/mrm...]. So it’s not clear what a higher correlation means. In the Davis model, CBF dominates the estimates of CMRO2. Thus, any thermal noise in CBF will be expected to translate to noise in CMRO2 estimates; Making them not independent parameters. Thus, I am not sure if the higher correlation in CBF-CMRO2 is an excelent measure to investigate which parameter is most closely related to CMRO2. But it also doesn’t hurt to keep the figure in there.

      7.) In the discussion, the authors discuss their beta value with respect to the literature. I think it would be helpful to mention that beta is not solely a tissue property constant. It is expected to be different across field strength, TE and BOLD contrast (GE-SE).

      8.) Typo in discussion “rang from 0.9…”

    1. On 2024-10-19 20:32:11, user CDSL JHSPH wrote:

      I thoroughly enjoyed reading your paper and found it to be a significant contribution to the field of tuberculosis treatment. The exploration of model-based methods, particularly MCP-Mod, to enhance traditional qualitative approaches is both timely and necessary. Your findings highlight the effectiveness of these methods in detecting duration-response relationships, especially in small sample trials, which is a crucial aspect of optimizing treatment strategies.

      I am particularly intrigued by the potential for these model-based approaches to be applied beyond TB. It would be fascinating to investigate whether the insights gained from your research could be translated to other bacterial infections, such as Staphylococcus or Streptococcus species, as well as to the treatment of viral and fungal infections. This could open new avenues for improving antibiotic and antiviral therapies.

      Additionally, your suggestion to incorporate patient characteristics and risk factors into the analysis is commendable. I believe that further exploration of how different design parameters—such as sample size and time intervals—affect the accuracy of the model could provide valuable insights. Understanding how to integrate more patient-centric data into real-world clinical settings would enhance the applicability and scalability of your findings.

      Thank you for your valuable contribution to this important area of research. I look forward to seeing how your work evolves and the potential implications it may have for personalized treatment strategies in the future.

    2. On 2024-10-18 00:43:20, user CDSL JHSPH wrote:

      Thank you for sharing your research. I have read your paper and deeply appreciate the necessity and advantages of using model-based methods, such as MCP-Mod, to improve traditional qualitative approaches. The model-based methods you proposed have demonstrated excellent performance in detecting the duration-response relationship, especially in the context of small sample trials, and their potential application is very promising. Additionally, your suggestions for incorporating patient characteristics and risk factors pave the way for more personalized treatment strategies in the future. However, I wonder if it would be possible to further explore how different design parameters, such as sample size and time intervals, might affect the accuracy of the model, and how more patient-centric data could be integrated into the analysis in real-world clinical settings. I believe this could help enhance the understanding of the model’s applicability and scalability. Thank you once again for your valuable contribution to this field, and I look forward to seeing more of your research in the future.

    1. On 2024-12-05 12:13:20, user xPeer wrote:

      Courtesy review from xPeerd.com

      Summary<br /> The study "Pre-existing anti-polyethylene glycol antibodies in pregnant women and newborns" investigates the prevalence and levels of pre-existing anti-PEG antibodies in pregnant women and their newborns, revealing significant safety concerns over the use of PEGylated drugs in these populations. The study highlights maternal age and certain lifestyle factors, such as cosmetic use and consumption of take-out food, as influencing the prevalence and levels of these antibodies. The implications for public health lie in the potential reduced efficacy and increased adverse reactions to PEGylated drugs.

      Potential Major Revisions<br /> 1. Study Design and Population Detail Improvement: The current study design section provides a basic overview of the population criteria (pg. 7) but lacks deeper context about the broader representativeness of the sample size and demographics. Additional detail on potential regional and healthcare-specific biases can help contextualize the findings better for international readers.

      1. Methodological Clarification: Some methodological aspects, such as the exact ELISA techniques used and their validation, are mentioned cursorily (pg. 11). A more comprehensive separate methodological section could provide greater clarity and benefit reproducibility.

      2. Detailed Analysis of Influencing Factors: The discussion of influencing factors like maternal age and cosmetic use (pg. 11) needs expansion to delve into how these were statistically analyzed and how robust these findings are. The differences in antibody prevalence and levels based on lifestyle factors should be discussed with more supporting data.

      3. Potential Confounders: Addressing potential confounding variables not examined in the study could enhance its robustness. Consider expanding the discussion around potential other environmental and genetic factors influencing anti-PEG antibodies not addressed in this study.

      4. Discussion on Clinical Implications: While the study raises concerns about the safety of PEGylated drugs, it stops short of providing specific clinical recommendations or guidelines. This section could be expanded to address more direct implications for clinical practice and public health policies (pg. 10).

      Recommendations<br /> 1. Expand and Detail the Methodological Section: Expand where necessary, especially focusing on the validation and comparison of ELISA techniques used between this study and previous studies.<br /> 2. In-depth Statistical Analysis: Include more detailed statistical tables and charts to back the discussions around influencing factors and antibody levels.<br /> 3. Address Confounders: Identify and address other potential influencing factors and confounders that were not examined and discuss their potential impact on the findings.<br /> 4. Clinical Guidelines Discussion: Provide a more detailed discussion with possible clinical guidelines or recommendations addressing the raised safety concerns about the use of PEGylated drugs in seropositive populations.

      Potential Minor Revisions<br /> 1. Typographical Errors: Correct minor typographical errors, such as any found in the description and presentation of data in figures and tables (pg. 7).<br /> 2. Formatting Consistency: Ensure that formatting is consistent throughout the document, particularly around headings and subheadings for better readability.<br /> 3. AI-Generated Content Analysis: No significant AI-generated content was detected in the document. The content is likely produced by human authors, given the nuanced arguments and specific scientific context presented.

      By addressing these points, the study could provide a more thorough and accessible analysis of its findings, enhancing its contribution to the understanding of pre-existing anti-PEG antibodies in pregnant women and newborns.

    1. On 2024-12-06 02:09:34, user xPeer wrote:

      Courtesy review from xPeerd.com

      Summary

      The preprint titled "RGnet: Recessive Genotype Network in a Large Mendelian Disease Cohort" introduces RGnet, a novel tool for analyzing recessive genotypes in large cohorts, focusing on compound heterozygotes and homozygotes. The study applied RGnet to the SLC26A4 gene within a cohort of individuals with hearing loss, identifying significant pathogenic variants and demonstrating the tool's potential for advancing the understanding of recessive genetic disorders. The paper highlights the novelty of RGnet, the methodology involving variant preprocessing, phasing, network construction, and permutation-based enrichment analysis, and presents the results from its application to the CDGC cohort.

      Potential Major Revisions

      1. Reproducibility and Data Availability:
      2. Ensure that the datasets and tools used in this study are accessible. Although the paper mentions the availability of RGnet on GitHub, details about accessing specific datasets (e.g., CDGC data) were not explicit.
      3. Example: "RGnet is available from GitHub at https://github.com/jiayiiiZeng/RGnet " (page 1) but does not provide direct links or instructions for data access.

      4. Robustness of the Methodological Framework:

      5. Explain the justification for the chosen phasing methods (trio-based, read-based, expectation-maximization algorithms) and their combination.
      6. Example: "This study employs a combination of trio-based phasing, read-based phasing, and an expectation-maximization phasing algorithm" (page 3). However, specific reasons for selecting these methods are not provided.

      7. Statistical Analysis:

      8. Provide a more detailed description of the permutation tests used for RG enrichment analysis and why 100,000 permutations were specifically chosen.
      9. Example: The paper states that "100,000 permutations were performed" without detailing the basis for this choice (page 5).

      10. Ethical Considerations:

      11. Include a section discussing ethical considerations, particularly concerning patient data privacy and consent given the sensitive nature of genetic data.
      12. There is no mention of ethical reviews or consent processes, which is crucial for studies involving human genetic information.

      Potential Minor Revisions

      1. Typos and Grammar:
      2. Correct minor typos and ensure grammatical consistency. For example:
      3. Line 18, page 1: "To address this 18 gap" should be "To address this gap".
      4. Line 58, page 2: "research3,4" should be "research" followed by proper citations.

      5. Formatting Issues:

      6. Ensure consistent citation formatting throughout the text.
      7. In the reference section, ensure that all references, such as URL links, are formatted and hyperlinked correctly. For example, repeat the formatting used for URL links like " https://doi.org/10.1101/2024.12.02.24318353 " for other references as well.

      8. AI Content Analysis:

      9. The paper does not provide any indications of AI-generated content. It appears authentically authored by humans, considering its depth and technical specialization.

      Recommendations

      1. Increase Transparency in Methodological Choices:
      2. Provide a more granular explanation of the methodological decisions, particularly around the choice of phasing methods and permutation tests.

      3. Enhance Data Accessibility:

      4. Ensure that all datasets and supporting materials are accessible, with clear instructions for researchers wishing to replicate the study or apply the RGnet tool.

      5. Incorporate an Ethical Review Section:

      6. Add an ethics section discussing how patient data was handled, the consent process, and any relevant ethical approvals obtained for this study.

      By addressing these major and minor revisions, the paper can be significantly strengthened, ensuring clarity, reproducibility, and ethical adherence, which are vital for advancing research in genetic studies.

    1. On 2025-02-24 23:45:15, user Stephen Goldstein wrote:

      I am now pasting in the review done by Gemini 2.0 Flash Thinking Experimental. I have not edited it.

      Prompt: Please conduct an extremely rigorous, journal-agnostic peer review of this manuscript.

      Response:<br /> I have now thoroughly read the manuscript: "Immunological and Antigenic Signatures Associated with Chronic Illnesses after COVID-19 Vaccination" by Bhattacharjee et al., available at https://www.medrxiv.org/content/10.1101/2025.02.18.25322379v1 .

      Here is an extremely rigorous, journal-agnostic peer review of this manuscript:<br /> Extremely Rigorous, Journal-Agnostic Peer Review of Manuscript: "Immunological and Antigenic Signatures Associated with Chronic Illnesses after COVID-19 Vaccination"<br /> Manuscript DOI: https://doi.org/10.1101/2025.02.18.25322379 <br /> Manuscript URL: https://www.medrxiv.org/content/10.1101/2025.02.18.25322379v1.full-text

      Overall Assessment

      This manuscript by Bhattacharjee et al. investigates the complex and highly sensitive question of immunological and antigenic signatures associated with chronic illnesses reported following COVID-19 vaccination. The authors employ a multi-faceted approach, combining clinical data from a prospective cohort study with deep immunophenotyping and autoantigen profiling. The study's aim is to identify potential immunological correlates of these post-vaccination chronic conditions, which is a crucial area of investigation given ongoing public health discussions and concerns.<br /> While the study addresses a highly relevant and important question, and utilizes advanced methodologies, this review finds that the manuscript in its current form presents significant limitations in its methodology, analysis, interpretation, and overall conclusions. From a rigorous, journal-agnostic perspective, the manuscript requires substantial revisions and further validation before it could be considered to provide robust and reliable scientific evidence. The current findings are preliminary and require cautious interpretation, and the manuscript overreaches in its conclusions and implications.

      Major Strengths (Limited in Impact by Weaknesses)<br /> Addresses a Highly Relevant Question: Investigating potential immunological links to chronic illnesses post-COVID-19 vaccination is undeniably important for public health and vaccine confidence.

      Prospective Cohort Design: The prospective cohort study design is a strength, allowing for systematic data collection and comparison between vaccinated individuals with and without reported chronic illnesses.

      Multi-Omics Approach: The use of multi-parameter flow cytometry for immunophenotyping and autoantigen microarray profiling are advanced techniques that offer the potential to identify complex immunological signatures.

      Clinical Data Integration: The study attempts to integrate clinical data (symptomology, diagnoses) with immunological data, which is essential for translational relevance.

      Major Weaknesses and Critical Concerns (Requiring Substantial Revision)

      Case Definition of "Chronic Illnesses": Critically Vague and Subjective. The definition of "chronic illnesses" post-vaccination is alarmingly vague and relies heavily on self-reported symptoms and broad diagnostic categories (e.g., "dysautonomia," "POTS," "fibromyalgia"). There is no clear, objective, and validated case definition used. This introduces significant subjectivity and potential for bias in patient selection and outcome assessment. The lack of specific inclusion/exclusion criteria for these "chronic illnesses" undermines the scientific rigor of the entire study. It is unclear if these are new-onset conditions post-vaccination, or exacerbations of pre-existing conditions, or simply background rates of these conditions temporally associated with vaccination.

      Lack of Appropriate Control Groups: The study compares "Vaccinated individuals with chronic illness" to "Healthy vaccinated controls." This control group is insufficient. Crucially, there is no unvaccinated control group with similar chronic illnesses. Without this, it is impossible to determine if the identified immunological signatures are specific to post-vaccination illnesses, or are simply signatures associated with these illnesses in general, regardless of vaccination status. Furthermore, a "healthy unvaccinated" control group would be essential to assess baseline immunological differences related to vaccination itself.

      Causality vs. Association: Fails to Establish Causality. The study is fundamentally correlational. It fails to provide any robust evidence for a causal link between vaccination and the reported chronic illnesses. The temporal association alone is insufficient to establish causality. The manuscript over-interprets correlational findings as suggestive of causal relationships, which is scientifically unsound. Confounding factors (e.g., pre-existing conditions, other exposures, reporting bias) are not adequately addressed or controlled for.<br /> Small Sample Size and Statistical Power: The sample sizes for the "chronic illness" groups are relatively small (e.g., n=15-20 per group in some analyses). Given the complexity of immunological data and the heterogeneity of "chronic illnesses," the study likely lacks sufficient statistical power to detect subtle but potentially meaningful differences, and is highly susceptible to false positives. The statistical analyses presented are descriptive and lack rigorous correction for multiple comparisons, further increasing the risk of spurious findings.

      Over-Interpretation and Over-Generalization of Findings: The manuscript overstates the significance and generalizability of its findings. The conclusions are presented in a manner that suggests a stronger link between vaccination and chronic illnesses than is warranted by the limited and preliminary data. The discussion section speculates broadly on potential mechanisms without strong empirical support from the study itself. The manuscript risks contributing to vaccine hesitancy by presenting preliminary and correlational data as stronger evidence than it is.

      Limited Validation and Reproducibility: The findings are not validated in an independent cohort. Without external validation, the reproducibility and generalizability of the identified immunological signatures are highly questionable. Given the small sample sizes and potential for batch effects in omics data, validation is absolutely essential.

      Lack of Clinical Characterization and Phenotyping: Beyond broad symptom categories, the clinical characterization of the "chronic illness" groups is superficial. Detailed clinical phenotyping, including objective measures and validated diagnostic criteria, is lacking. This makes it difficult to interpret the clinical relevance of the identified immunological signatures. The manuscript does not adequately address the heterogeneity within these broad "chronic illness" categories.<br /> Potential for Reporting Bias and Selection Bias: Individuals who believe they have experienced adverse events post-vaccination may be more likely to participate in studies investigating vaccine-related illnesses. This introduces potential reporting bias and selection bias, which are not adequately addressed in the manuscript.

      Ethical Considerations and Responsible Communication: Given the sensitive nature of the topic and the potential for misinterpretation, the manuscript needs to demonstrate a heightened awareness of ethical considerations and responsible scientific communication. The current manuscript, in its over-interpretation and lack of caveats, falls short in this regard. The potential for public misinterpretation and the fueling of vaccine hesitancy needs to be carefully considered and mitigated.

      Recommendations for Substantial Revision (Minimum Requirements for Consideration in a Rigorous Journal)<br /> Develop and Implement Rigorous, Objective Case Definitions:

      This is the most critical revision. The authors must develop and apply clear, objective, and validated case definitions for each "chronic illness" category. This requires moving beyond self-reported symptoms and broad diagnoses. Consult with relevant clinical specialists to establish specific inclusion and exclusion criteria based on objective clinical findings, validated diagnostic tools, and established disease classifications. Vague terms like "dysautonomia" and "POTS" are insufficient without precise operationalization.

      Include Essential Control Groups: Absolutely essential revision. The study must include:<br /> Unvaccinated individuals with similar chronic illnesses: To determine if the immunological signatures are specific to post-vaccination illnesses or are general features of these conditions.

      Healthy unvaccinated controls: To assess baseline immunological differences related to vaccination itself.<br /> Focus on Establishing Causality (or Acknowledge Purely Correlational Nature): The authors must either:<br /> Significantly temper their interpretations and conclusions to reflect the purely correlational nature of the study. Avoid any language that implies or suggests causality. Clearly state the limitations of correlational findings. <br /> OR<br /> Implement methodological approaches to strengthen causal inference. This would be extremely challenging in this observational study design, but might involve more sophisticated statistical methods to address confounding, mediation analysis, or focus on subgroups with stronger temporal associations. However, even with these, establishing robust causality will be very difficult.

      Increase Sample Size and Statistical Power: Larger sample sizes are needed, particularly for the "chronic illness" groups, to improve statistical power and reduce the risk of false positives. This may require multi-center collaboration and a significant expansion of the study.

      Rigorous Statistical Analysis and Correction for Multiple Comparisons: Implement more rigorous statistical analyses, including appropriate correction for multiple comparisons in omics data. Focus on robust statistical methods and validation of findings.

      External Validation in Independent Cohort: Validation of the identified immunological signatures in an independent cohort is essential to assess reproducibility and generalizability. Without validation, the current findings are highly preliminary and should be interpreted with extreme caution.

      Enhance Clinical Characterization and Phenotyping: Provide much more detailed and objective clinical characterization of the "chronic illness" groups. Include validated clinical assessments, objective measures, and explore heterogeneity within these groups.

      Address Potential Biases: Acknowledge and discuss the potential for reporting bias and selection bias. Implement strategies to mitigate these biases where possible, or at least transparently discuss their potential influence on the findings.<br /> Responsible and Cautious Communication: The manuscript must be rewritten with a much more cautious and balanced tone. Avoid over-claiming, over-generalization, and any language that could be misconstrued as definitive proof of vaccine-induced chronic illnesses. Emphasize the preliminary and correlational nature of the findings, and the need for further rigorous research. Clearly discuss the limitations of the study and the potential for misinterpretation.

      Recommendation for Publication<br /> In its current form, this manuscript is not suitable for publication in any rigorous peer-reviewed journal. It suffers from critical methodological flaws, significant limitations in its analysis and interpretation, and overreaches in its conclusions. Substantial revisions are absolutely necessary to address the major weaknesses outlined above.<br /> Without these extensive revisions, the manuscript risks contributing to misinformation and vaccine hesitancy without providing robust and reliable scientific evidence.<br /> If the authors are able to undertake the very significant revisions recommended, particularly regarding case definitions, control groups, causality, and validation, the manuscript might then be reconsidered for publication in a specialized immunology or clinical immunology journal, but even then, would require extremely careful and balanced framing of the findings. Publication in a very high-impact journal like Science or Nature remains highly unlikely given the fundamental limitations in the study design and the sensitive nature of the topic.

      In conclusion, while the research question is important, the current manuscript requires a fundamental re-evaluation of its methodology, analysis, and interpretation to achieve scientific rigor and responsible communication of findings.

    2. On 2025-02-21 05:12:28, user Evan Stanbury wrote:

      Re "PVS participants also had lower anti-spike antibody titers, primarily due to fewer vaccine doses", ie the people with more vaccine doses had less PVS. This contradicts the hypothesis that vaccines cause Post-Vaccine Syndrome, since the dose-response relationship contradicts the hypothesis.

    3. On 2025-02-21 05:14:49, user Evan Stanbury wrote:

      A Machine-Learning (ML) model was able to distinguish fairly well between the "sick" and "not sick" cohort. But most ML models are incapable of explaining why a decision was made.<br /> In particular, ML cannot distinguish between the following two hypotheses: (A) "PVS is a Post-Vaccination Syndrome" (ie Iatrogenic) vs (B) "PVS is a Post-Viral Syndrome" (ie a symptom of disease). This is an important distinction since the the reported training data does not include patients with Long COVID.

    4. On 2025-02-24 06:06:47, user Daniel Corcos wrote:

      This work is a good start to appreciate the existence and organic nature of a post-vaccination syndrome. What worries me is the low number of control subjects. A much larger number of control subjects would allow adjustments to be made, particularly regarding the number of vaccine doses received.

    5. On 2025-03-26 03:22:48, user Pavel Montes de Oca Balderas wrote:

      It seems risky to claim so vehemently that vaccines saved lifes when the studies cited to backup this claim did not consider the syndrome described here that could also lead to death. <br /> Moreover, one of the references used here to demonstrate that vaccines saved 14 millions lifes through a math model has been called a "fiasco" because simple maths with world data records DO NOT fit their model. Also the authors of that paper have conflicts of interest as some are sponsored by the WHO and others.

      Longdom Publishing SL<br /> https://www.longdom.org <br /> The discrepancy between the number of saved lives with COVID-19 vaccination and statistics of Our World Data.

    1. On 2025-03-10 17:26:08, user Ruhollah Dorostkar wrote:

      I am Dr. Ruhollah Darskar, a specialist in medical virology with 20 years of research experience in the field of virology and vaccines.<br /> The article... has been published without considering the facts of the covid-19 virus and the complications of this virus and the corona pandemic, and unfortunately without mentioning the round-the-clock efforts of Iranian scientists in the field of identifying and controlling the corona disease.<br /> For example, due to the lack of diagnostic kits in the world, at the beginning of the spread of the disease, more than 20 of my colleagues and I worked around the clock in the field of rapid virus detection and identification and the launch of the virus detection kit.

      In order for our activities to be accurate and completely scientific, my colleagues and I have been away from home for a long time and were stationed at the hospital and many researchers and colleagues have also been infected with the corona disease.

      Considering the publication of thousands of articles about the scientific activities of the Corona pandemic in Iran, it is unethical to create ambiguity about the scientific activities of Iranian researchers.

    2. On 2025-03-14 14:22:15, user Amir wrote:

      The paper’s statistical approach is troublingly opaque; without a detailed account of the one-way ANOVA assumptions or the Prophet model’s parameter choices, the reported findings on vaccine delays and excess mortality remain unconvincing and methodologically fragile.

      While the manuscript highlights a correlation between delayed vaccination and excess deaths, it fails to adequately control for crucial confounding variables such as healthcare infrastructure, socioeconomic status, and demographic differences, making its causal claims appear overly simplistic.

      Claiming that 50,000 excess deaths resulted directly from delayed vaccination campaigns is a bold assertion that lacks the necessary evidentiary support; the absence of comprehensive sensitivity analyses and diagnostic metrics renders this figure speculative at best.

    3. On 2025-03-15 20:37:50, user Ali Molaverdi wrote:

      The authors appear to conflate correlation with causation when attributing excess mortality to political populism, an interpretative leap that undermines the scientific validity of their conclusions and calls for a more cautious analysis.

    1. On 2025-04-10 20:11:03, user Jeffrey_S_Morris wrote:

      This study's conclusion of -27% negative effectiveness does not seem to be supported by the study, given they did not account for testing bias, which happens to also be 27%, with vaccinated testing on average a 27% higher rate than unvaccinated.

      To their credit, the authors acknowledged this in the following plot:<br /> https://uploads.disquscdn.c... <br /> Here it can be seen in my replotting of their Figure 1a scatterplot on the log y axis (after extracting the data by applying AI tool to their scatterplot image), with the 27% increase being the (geometric) mean testing rate (vaccinated/unvaccinated) over the days they plotted.

      https://uploads.disquscdn.c...

      Incidentally, taking simple means (or fitting linear regressions) for a sample of ratios is not good statistical practice since the <1 and >1 parts are asymmetric, so instead the geometric mean (averaging on the log scale) should be used. For example, if one day is 4x higher for vaccine and one day 4x lower, they should average to be equivalent. The average on the raw scale (4 + 0.25)/2 = 2.125 would imply a mean 2.125x increase, which is incorrect, while a geometric mean (averaging on the log scale and then exponentiating) would get the correct result. 2^{log_2(4)+log_2(0.25)} = 2^(2 + -2) = 2^0 = 1. That is why I used geometric mean in the plot above and plot in the log scale, and think the authors should do the same in their paper.

      While they acknolwedge the increased testing rate, the text of the paper dismisses it as a potential source of bias by claiming the test positivity rate is equivalent in vaccinated and unvaccinated. I agree with their logic that if test positivity were identical in vaccinated and unvaccinated, then the 27% higher testing rate could simply be a result of a 27% higher infection rate, and not from testing bias.

      However, the analysis they present to support this assumption is not justified and seems flawed. They perform a linear regression of the ratio of testing positivity (vaccinated/unvaccinated) by day over time, and because the confidence bands intersect zero they conclude the test positivity is no different between vaccinated and unvaccinated, and thus the difference in testing rate is not a bias, but from the negative effectiveness that they conclude is true.<br /> https://uploads.disquscdn.c... <br /> However, this analysis is problematic for numerous reasons:<br /> 1. It is not clear why a regression over time should be done to answer this question, and not clear why one would assume any time trend is strictly linear. It would make much better sense to compute a (geometric) mean over time, or if wanting to model time trends to use a smooth nonparametric function.<br /> 2. Computing means or modeling time trends on ratios should not be done on the raw scale, but the log scale, for the reasons discussed above.

      Plotting these numbers on the log scale (again, after using AI tool to extract it from their scatterplot image in the paper), I computed the geometric mean test positivity, and find it to be 0.80, meaning the "average" test positivity over time is 20% lower in vaccinated than unvaccinated, certainly not the same.

      https://uploads.disquscdn.c... <br /> This lower test positivity is obscured in their original plot on the raw scale, since the ratios <1 got compressed and ratios>1 expanded.

      If you have a situation with vaccinated having 1.27x the testing rate and 0.80x the test positivity, this would correspond to an infection rate that is 1.27 x 0.80 = 1.016x higher infection rate. This would correspond no difference in infection rate, certainly not a 27% increased infection rate in vaccinated.

      While not a formal analysis, this demonstrates that vaccinated having a 27% higher testing rate along with a 20% lower test positivity rate could result in a 27% higher rate of confirmed flu infections even if the infection rate was equivalent between vaccinated and unvaccinated.

      In that case. the 1.27x increased testing rate would be a testing bias that produces a spurious 1.27x confirmed infection rate even if the infection rate were not higher in the vaccinated.

      Based on this, one cannot tell from the study whether the 1.27x increased rate of confirmed flu infections is from negative effectiveness (as claimed), or from the testing bias (which is not adjusted for in the analysis).

      The authors cannot rule out the possibility that their results are caused by the testing bias, which is not accounted for in their analysis.

      Thus, I don't think the conclusion of -27% VE is valid.

      At most, they could say there is no evidence of any vaccine effectiveness vs. infection, but cannot conclude a significant negative effectiveness because of failure to account for the testing bias.

      Of course, there are designs to adjust for this testing bias -- test negative designs -- but the authors eschew this design, seemingly because it gives odds ratios rather than relative rates which they express concern that they are not as intuitive to grasp.

      To me, that seems like a relatively minor issue relative to testing bias of sufficient magnitude to drive spurious results.

      If I were reviewing this paper, I'd require them to adjust for the testing bias, and ideally perform a test negative design, even if considered a secondary analysis.

      Of course test negative designs have their own limitations and potential biases, but at least considering it as a secondary analysis would be useful to see if they obtain equivalent results using that design and, if not, should raise questions on whether they should boldly conclude negative effectiveness in this study, or instead more carefully conclude a lack of evidence of vaccine effectiveness in their cohort.

      These concerns are also summarized in an http://x.com thread

    1. On 2025-04-23 12:00:02, user Pei Meng wrote:

      I read your paper with great interest, but I have a question regarding the following statement:

      “This approach identified putative drivers for all aut-mCAs (Table 1). Annotation of driver genes as tumor suppressors or proto-oncogenes revealed that every + aut-mCA contained proto-oncogenes as putative drivers, notably every – aut-mCA contained tumor-suppressors as putative drivers, and = aut-mCAs contained either proto-oncogenes and tumor-suppressor drivers.”

      I noticed that TP53 is located on chromosome 17p, and from Extended Figure 2, there appear to be some losses on chromosome 17q. These 17q losses don't seem to contain tumor suppressors as putative drivers. Could you please clarify how these cases were classified, and whether 17q losses were considered as – aut-mCAs without tumor-suppressor drivers?

    1. On 2022-05-18 18:22:54, user Yosuke Tanigawa wrote:

      Hi Chelsea,

      Congrats on the impressive work and the talk at #BoG22. I am curious if your results would also help resolve the pathogenicity of rare SNVs or rare short indels. For example, is it possible to say rare (smaller) variants disrupting the boundaries of TADs identified from your genome-wide scan (Fig. 4) would likely be pathogenic? Suppose many pathogenic variants are enriched at such TAD boundaries at a well-characterized locus (perhaps MEF2C locus). In that case, it may be possible to gain insights into the pathogenicity of VUSs at other TADs. Thanks!

      Best,<br /> Yosuke

    1. On 2022-06-06 19:03:39, user Chris wrote:

      During this period, the test positivity rate was about 7%. Some of those tests may be random (schools, needed for travel, etc.), but it seems odd that the rate of having COVID would be lower for people who go get a test than for people who just pick up the phone and answer a survey - even if it related to a 2 week period. Note the COVID tests would pick up people who were infected over some period in the past as well.

    1. On 2022-06-17 14:18:31, user Peter J. Yim wrote:

      The trial registration at ClinicalTrials.gov listed three primary endpoints: <br /> 1. Number of hospitalizations as measured by patient reports. [ Time Frame: Up to 14 days ]<br /> 2. Number of deaths as measured by patient reports [ Time Frame: Up to 14 days ]<br /> 3. Number of symptoms as measured by patient reports [ Time Frame: Up to 14 days ]

      The publication reports the outcomes for none of those endpoints.

      1. The rate of hospitalization was reported at 28 days. That was registered as a secondary outcome.
      2. Mortality was reported at 28 days. That was registered as a secondary outcome.
      3. The number of symptoms was only reported at baseline.

      This article is close to irrelevance on the question of the efficacy of ivermectin in COVID-19.

    1. On 2022-07-15 12:36:40, user Bob wrote:

      So what happened with the peer review process?<br /> 238 days have passed, about 2/3rd (66.85%) of a year, or 8 months have passed and no updates. It hasn't been declined and claimed to be wrong, nor has it been approved ...

      Either the paper did a proper job or it didn't ....

    1. On 2022-07-23 18:11:27, user Rogerblack wrote:

      The mental health scales used in this protocol are in general wholly inappropriate for someone with a condition where they are significantly fatigued, facing an uncertain future, with difficulty doing normal activities of life.

      This studies depression and anxiety measure ASSUMES A HEALTHY PATIENT. 'little energy', 'trouble concentrating' 'moving slowly' = a minimum score of 3 due to physical symptoms of longcovid/fatigue. If very exhausted, this can easily rise into the 'severely depressed' range.

      It is not unreasonable to use the PHQ-9 or similar as a screening measure of disease severity.

      To use it in a patient population suffering from fatigue, concentration problems, ... is guaranteed to cross-read between those symptoms and anxiety - it is useless without a careful assessment of each question to find if you are measuring MH, or physical symptoms.

      In past papers with this issue (many), you find unjustifed claims like (PHOSP-COVID) "The physical, cognitive and mental health burden experienced by COVID-19 survivors was <br /> considerable. This included symptoms of anxiety and depression in a quarter" without much more work, as it will lead to the conclusion that treating depression may benefit the patient when there is no interpretable (scale valid) depression, and it's a scale artifact.

      PHQ9 and similar scales are designed for patients without significant physical <br /> comorbidities to the mental state they are trying to measure. The normal scale cuts are only valid for this purpose.

      To use them at face value is as meaningful as noting that a symptom of Orthostatic hypotension is to wobble on standing up, and concluding that patients with one leg are likely to have OI because nearly all wobble on standing up.

      I am a patient with ME/CFS who has been noticing this same issue for many years.<br /> Please at the very least carefully consider scale validity per-patient severity and avoid making MH statements that come from inappropriate scale use. If you must use unmodified PHQ-9 and friends, this must come with a large warning that it is only a severity measure.

    1. On 2022-09-08 01:25:06, user Martin Hensher wrote:

      Some people who have tweeted this article have taken your Long COVID prevalence estimates as being representative of Long COVID arising from Omicron / BA.5 infections. Yet my reading is that you have explicitly not counted Long COVID symptoms arising from the new COVID infections in your study period (June 2022); therefore people reporting Long COVID in this study do so from a prior infection, which could in fact have occurred at any time during the pandemic until June this year. Interpreting your Long COVID prevalence estimate as prevalence arising from recent BA.5 infection is therefore not correct - which some have done, but I hasten to add the authors have not! Would you agree that is a fair assessment?

    1. On 2022-09-19 01:01:30, user Miles Markus wrote:

      A question (a subject for future research) arises, indirectly, from this impressive analysis.

      Relatively few hypnozoites are present in chronic Plasmodium vivax malaria. But there is a large, concealed, asexual parasite reservoir.

      So does tafenoquine prevent a significant proportion of P. vivax malarial recurrences by killing many non-circulating, extra-hepatic merozoites (see reference below)?

      Or are the vast majority of recurrences of P. vivax malaria relapses (i.e. recurrences that have a hypnozoite origin), as has been suggested by various researchers?

      REFERENCE (the link below can be clicked on): Markus, M.B. 2022. Theoretical origin of genetically homologous Plasmodium vivax malarial recurrences. Southern African Journal of Infectious Diseases 37 (1): 369. https://doi.org/10.4102/saj...

    1. On 2024-02-05 00:31:50, user disqus_qMy1DU5jUb wrote:

      The preprint challenges the validity of two modelling papers by comparing COVID-19 mortality data across Japanese prefectures, assuming these differences reflect the impact of varying vaccination coverages. This comparison is flawed due to unaccounted variables like population density, demographics, urbanization, and epidemic stages. Moreover, it overlooks the interconnectivity between prefectures in virus spread. The critique simplistically equates, for example, Tokyo and Saitama as identical except for their vaccination rates, which is highly questionable.

    1. On 2024-02-20 15:54:40, user John wrote:

      Chesekes et al (2022) utilise 2 different defibrillators in their trial.<br /> Zoll X series - rectilinear biphasic - 120,150, 200 j protocol<br /> Lifepak 15 - truncated exponential biphasic - 200, 300, 360 j protocol<br /> Both have a 15% variance in actual energy delivered.<br /> Is there consideration to be made to the range of energy delivered to the VC and DSD cohorts?<br /> VC - 200J Zoll 360J Lifepak<br /> DSD - 400J Zoll 720J Lifepak<br /> Should future trials use a single type of defibrillator to remove this as a possible confounding variable?

    1. On 2024-03-14 13:13:14, user Rune Wilkens wrote:

      This is a very interesting study! Why not discuss and highlight that 20% of the "cirrhosis" patients have PBC? One of the big drivers of the difference between IBD and non-IBD looks like being PBC ("immune-mediated") or even viral. This provides a different picture.

    1. On 2024-04-11 17:36:56, user JMIR Publications wrote:

      Join JMIR Publications & PREreview for a Live Review of this preprint: Assessing the Incidence of Postoperative Diabetes in Gastric Cancer Patients: A Comparative Study of Roux-en-Y Gastrectomy and Other Surgical Reconstruction Techniques - by Tatsuki Onishi medRxiv: https://hubs.la/Q02stzCL0

      April 19, 9am PT / 12pm ET / 4pm UTC

      Learn More & Register: https://hubs.la/Q02stwwt0

    1. On 2024-08-21 16:23:52, user DUPA- Preprint Review wrote:

      Overall, this is a well-designed and conducted analysis that provides valuable insights into comorbidity patterns among early COVID-19 deaths in the United States. The manuscript presents important findings on the morbidity patterns associated with COVID-19 mortality and offers valuable insights for public health strategies. The latent class analysis (LCA) is a widely utilized clustering method for investigating comorbidities, which effectively addresses the issue of collinearity among comorbidities in high-risk populations. It could help identify disease patterns and understand disease relationships. The findings give researchers and health departments detailed knowledge to quickly identify vulnerable populations and provide protection in these public health emergencies. However, addressing the suggestions outlined above will enhance the clarity, transparency, and impact of the study. Therefore, we recommend the manuscript for publication with minor and major revisions.

      Major Comments:

      In Materials and Methods section, line 6 of the second paragraph, it is noted that cardiovascular disease (CVD) includes a variety of diseases/conditions with different prevalence and severity. For example, hypertension may have a significantly higher prevalence compared to other diseases within the CVD group, potentially leading to a disproportionate representation. Is it possible to list the prevalence of individual diseases in the supplementary material? Additionally, It would be beneficial to separate the diseases that have more than 60%(or other value)prevalence as the sensitivity analysis. This approach could enhance the stability of the study by avoiding amplifyfication of the effects from individual diseases with high prevalence. On the other hand, it also provides more details and discussion for the formation of the present results.

      Minor Comments:

      1. In the Abstract, Results section line 3: the phrase “A low frequency of comorbidities” is not precise. Use several words to express “where the prevalence of each comorbidity group was less than that of the entire sample” could be clear.

      2. In the Introduction, paragraph 1: <br /> The study effectively reaffirms the importance of cardiovascular disease and diabetes. Including a comparison with other studies conducted during the same period would provide valuable context.

      3. In the Discussion section, paragraph 2, line 3-6:<br /> Cardiovascular disease was present at 23%, even in the "minimal prevalence" category, which includes cardiovascular disease and diabetes, prominent cardiovascular disease without diabetes, and "minimal prevalence." Is there a difference in the distribution of each disease? Could this same/different distribution further explain the large proportion of "minimal prevalence" in people over 85 years old?

      4. In the Discussion section, paragraph 2, line 7-11:<br /> What are the mechanisms behind the high rankings for kidney disease and chronic lung disease.

      5. In the Discussion section, paragraph 2, line 1:<br /> In addition, please briefly state the underlying mechanisms behind cardiovascular disease and diabetes, such as mechanisms of interaction between cardiovascular disease and diabetes.

      6. In the Discussion Section, paragraph 4, line 2:<br /> The discussion effectively interprets the findings, particularly identifying the "minimal prevalence" class. But besides the eldest group, the proportions of this class still lead in other age groups. Is there any other explanation for why the "minimal prevalence" class still experienced significant mortality? It would also be helpful to provide more details based on citations 28,29(or other literature) to explain the reasonableness of proportions. This additional detail could offer deeper insights into the underlying factors contributing to their outcomes.

    1. On 2024-10-13 17:50:05, user Tom Hagan wrote:

      Consider that niclosamide is highly lipophilic (LogP of 3.91) and the distal rectum’s inferior and middle veins have been employed to systemically transport many rectally administered, insoluble drugs. Would niclosamide have greater bioavailability if simply compounded as rectal suppositories? Apparently - from searching the journals- this has never been attempted.

    1. On 2024-11-15 15:00:42, user Chandni Khemai wrote:

      This paper has been accepted for publication in the Journal of Integrated Care, published by Emerald Publishing Limited.

    1. On 2025-02-20 16:46:44, user Caleb Hartman wrote:

      SN Table 5 and SN Table 6 appear to present the exact same mutational signature activities data for copy number signatures. The signature column labels for both tables appear to be decomposed COSMIC signature labels. I think SN Table 5 needs to contain de novo extracted copy number activities values. Would the authors be able to update this discrepancy?

    1. On 2025-02-26 23:25:34, user Guido Mazzone wrote:

      The sentence " This stop gain variant has not been previously reported and it is not present in <br /> gnomAD and 1000 genomes databases" is not correct anymore.<br /> ERMARD(NM_018341.3):c.1523G>A is actually present in gnomAD 4.1.0 with global AF=1/1613140 and South Asian AF=1/90712.<br /> This is interesting because the patient is South Asian.<br /> https://gnomad.broadinstitute.org/variant/6-169776457-G-A?dataset=gnomad_r4

    1. On 2025-04-01 17:33:08, user Richard DiBenedetto wrote:

      A number of Havana Syndrome victims reported a sudden onset of symptoms resembling effects of a concussion. Impairment similarity with areas of the brain affected by pesticides does not conclude cause of sudden concussion. Sudden symptoms from my personal experience were more like radio frequency, EMP or radar type technology. There has been much research on microwave bioeffects which is worth further study for a cause of Havana Syndrome.

    1. On 2025-04-29 13:39:34, user Guignabert wrote:

      Dear Dr. Sajid Shahul and colleagues, <br /> Reference 3 is incorrect and should be replaced with the following: Guignabert C, Savale L, Boucly A, Thuillet R, Tu L, Ottaviani M, Rhodes CJ, De Groote P, Prévot G, Bergot E, Bourdin A, Howard LS, Fadel E, Beurnier A, Roche A, Jevnikar M, Jaïs X, Montani D, Wilkins MR, Sitbon O, Humbert M. Serum and Pulmonary Expression Profiles of the Activin Signaling System in Pulmonary Arterial Hypertension. Circulation. 2023 Jun 13;147(24):1809-1822. doi:10.1161/CIRCULATIONAHA.122.061501. Epub 2023 Apr 25. PMID: 37096577. <br /> Thank you.

    1. On 2025-05-22 10:50:12, user Naoki Watanabe wrote:

      We are pleased to announce that this preprint has undergone peer review and has been published in a formal journal. Please refer to the final version of the article.

      Watanabe, N., Watari, T., Hosokawa, N., & Otsuka, Y. (2025). Alistipes Bacteremia in Older Patients with Digestive and Cancer Comorbidities, Japan, 2016–2023. Emerging Infectious Diseases, 31(4), 652.

      https://doi.org/10.3201/eid3104.241284

    1. On 2025-06-23 20:40:10, user FletchKennedy wrote:

      This write-up in Nature News (linked below) makes some good points. The creators of Otto-SR call it an "end-to-end agentic workflow using large language models (LLMs) to support and automate the SR workflow from initial search to analysis," but then they really only talk about the screening and data extraction processes. They also indicate that they used the pre-existing search strings when re-running the Cochrane Reviews.

      I'm not saying that speeding up the screening and data extraction processes aren't valuable, they are; but building a proper Cochrane search string can take months. Saying you did 12 work-years of traditional systematic review work in two days is a pretty bold claim when you're really only doing two parts of the process.

      https://www.nature.com/articles/d41586-025-01942-y?utm_source=bluesky&utm_medium=social&utm_campaign=nature&linkId=15300380

    1. On 2025-07-03 15:36:38, user Iraq Body Count wrote:

      We commend the authors of the Gaza Mortality Survey (GMS), and in particular their Palestinian survey colleagues, for producing the first rigorous estimate of violent deaths in Gaza since 7 October 2023 which is completely independent of deaths documented and collated by Gaza’s Ministry of Health (GMoH). Also significant is that it contains the first data-driven attempt to estimate non-violent deaths, which has so far been lacking from any other source.

      Also welcome is that, while the GMoH’s numbers are notably lower than those in GMS, its authors recognise that “By naming individual victims one by one, the GMoH endows each person with a measure of human dignity.”

      In their concluding section titled “The Future”, the authors go on to state that “Undercounting of violent deaths by the GMoH is likely to persist.” However the level of this undercount cannot be consistently derived from a single snapshot survey, for the simple reason that the GMoH documentation is continually being backfilled, as we have discussed extensively elsewhere: https://iraqbodycount.substack.com/p/gazas-internal-list-of-the-killed .

      The number the authors provide for the “comparable” period to GMS is one which the GMoH put out in early January 2025: 45,650. However in the GMoH’s list published March 2025, which the authors refer to elsewhere, this number had grown to 48,440. Latest GMoH data (15 June 2025) show that they have further increased their number of verified violent deaths for the period to 49,048 individuals.

      In addition to the deaths listed by GMoH, another 4122 identified dead were known to them by 10 April 2025 but had yet to be verified for addition to their list. (See: https://iraqbodycount.substack.com/p/gazas-victim-details-and-victim-deniers ) On past evidence, most if not all of these names will eventually be included too.

      In fact, had the GMS been conducted a year earlier (January 2024) the gap between its estimates and deaths listed by GMoH would have been markedly wider, as the GMoH has increased its numbers for that early period from an initial 14,121 to 26,987 (an increase of 91%). As the backfilling has progressed, the shortfalls have become appreciably smaller. A notable and predictable pattern has been that the higher the intensity of killing, the more has needed to be completed later. At any rate, these efforts by the GMoH have been constant (not to say noble and brave) and are likely to continue to reduce the difference between competently estimated and actually-recorded casualties.

      So any figure given for the level of difference between a survey and the GMoH is temporary, provisional, and dependent on the date at which the GMoH data was accessed.

      This exemplifies some of the difficulties in comparing a snapshot view such as is obtained by a survey with an ongoing casualty recording effort conducted on a daily basis. Any such comparison needs to be done with appropriate caveats which, if not included, might have the unintended effect of setting in stone a particular estimate of official “undercounting”, thus undermining essential casualty documentation efforts, particularly where such efforts are already being impeded by the most awful circumstances on the ground.

      Hamit Dardagan and John Sloboda, Iraq Body Count, London, UK<br /> 3 July 2025

    1. On 2025-07-06 08:41:23, user xu-sheng zhang wrote:

      Dear medRxiv staff

      I just want to inform you that our article has been [published in The Lancet Regional Health - Europe 2025; https://doi.org/10. 1016/j.lanepe.2025. 101364<br /> with a title: "Cost-effectiveness of vaccination strategies to control future mpox outbreaks in England: a modelling study". could you please help signpost to it.<br /> Best wishes<br /> Xu-Sheng Zhang

    1. On 2025-07-08 12:22:49, user Md Rakibul Hasan wrote:

      The article have recently been published in a journal, please see the following link

      Hasan, M. R., Sultana, N., Panthi, S., Hasan, M., Jahan, S., & Hasanat, M. A. (2025). Fasting Plasma Glucose as a Primary Screening Test for the Diagnosis of Gestational Diabetes mellitus: Fasting Plasma Glucose and Gestational Diabetes mellitus. Journal of the Medical College for Women & Hospital, 21(1), 43–51. https://doi.org/10.3329/jmcwh.v21i1.80952

    1. On 2025-07-13 08:45:42, user Ben Auxier wrote:

      In their pre-print Brackin et al. [1] present data suggesting nosocomial infections (that is, infections arising from the clinical environment) of patients infected with A. fumigatus. This is a surprising finding, given the near universal abundance of this fungus. As I detail below, there is no evidence of transmission chains within a hospital. Rather, the analyses presented fall victim to the statistics of detecting matches within populations of differing sizes, related to what is commonly referred to as “the birthday paradox”. The main data in this paper consists of whole genome sequencing data from 182 isolates from 15 patients (>2 samples from each patient), 101 isolates from patient’s homes, and 102 isolates from a medical centre that all patients visited. From these data, three comparisons are made between a) case samples and general environmental samples, b) case samples and their own home and c) case samples and the reference clinic.

      The authors find that there are links for a), consistent with reports over the last several decades that A. fumigatus populations are highly recombinant, but includes widely dispersed clones [2–5]. More interestingly, they find no links for b) but abundant links in c), which would be consistent with hospital spread. However, while the sample sizes in b) and c) are equivalent, the comparisons are not. Across the 8 cases (average of 11.3 isolates per case) where the housing was also sampled, an average of 12.6 isolates per house (101 total) were used for whole genome sequencing. This leads to ~1000 comparisons being made, due to substructure in the data. Notably, since some patients have long-term infections of one genotype, this number is an overestimate due to within-patient correlations. Then, all 182 patient isolates (more than the 8 patients sampled) are compared against all 102 isolates from the medical centre, producing over 18,000 comparisons. Thus, using a null hypothesis of no difference between patient-hospital and patient-home data, since there are ~20X more patient-hospital comparisons (and 20% of patient samples match a hospital sample), a naïve expectation would be 1% of patient-home comparisons to be clonally related, likely detectable in the ~1000 comparisons.

      Unfortunately, their analysis falls into the “birthday paradox”. Briefly stated, this paradox reflects the fact that while the chance that you share a birthday with someone else is 1/365, the chance that two people share a birthday within a classroom of 30 students is not 8% (30/365), but instead a surprisingly high 70%. This is because in the classroom situation you not only have a larger group, but also many more combinations. The chance of sharing a birthday can be considered as the chance of sampling two identical genotypes from a population of clones. Thus, while roughly equal numbers of isolates from homes and the reference center were used for genome sequencing, this difference in structure means that comparisons with patient isolates are unequal. However, the birthday paradox shows that this math is not intuitive and the chance of finding matches increases non-linearly. So, while perhaps 10 matches should have been expected between patients and their homes, which would already be a tenuous link, the expected number is effectively zero due to the smaller sample size.

      The actual sites of infection for A. fumigatus is important to discern. The cryptic nature of initial infections makes this a challenging task, requiring creative experimental or observational studies. However, I would argue simply identifying clonal matches provides insufficient evidence..

      References:<br /> 1. Brackin, A. P. et al. Genomic epidemiology links azole-resistant Aspergillus fumigatus hospital bioaerosols to chronic respiratory aspergillosis. 2025.07.04.25330042 Preprint at https://doi.org/10.1101/2025.07.04.25330042 (2025).

      1. Chazalet, V. et al. Molecular Typing of Environmental and Patient Isolates of Aspergillus fumigatus from Various Hospital Settings. Journal of Clinical Microbiology 36, 1494–1500 (1998).

      2. Rhodes, J. et al. Population genomics confirms acquisition of drug-resistant Aspergillus fumigatus infection by humans from the environment. Nat Microbiol 7, 663–674 (2022).

      3. Shelton, J. M. G. et al. Landscape-scale exposure to multiazole-resistant Aspergillus fumigatus bioaerosols. 2022.11.07.515445 Preprint at https://doi.org/10.1101/2022.11.07.515445 (2022).

      4. Snelders, E. et al. Widely dispersed clonal expansion of multi-fungicide-resistant Aspergillus fumigatus limits genomic epidemiology prospects. mBio 16, e03652-24 (2025).

    1. On 2025-08-10 13:57:05, user zerihun woldesenbet meja wrote:

      A timely and impactful study on HIV care in Ethiopia. The research team highlights the key risk factors for second-line ART failure, urging better adherence and continuity strategies. I hope this study fills a critical data gap and guides targeted interventions to improve patient outcomes.

    1. On 2025-08-26 09:25:30, user Constant VINATIER wrote:

      Feedbacks about your preprint : https://doi.org/10.1101/2025.07.31.25332504

      About registration: <br /> We could not find any information about the pre-registration of your study in the pre-print. Pre-registration involves documenting the hypotheses, methods, and/or analyses of a scientific study prior to its conduct (10.1073/pnas.1708274114; 10.1038/s41562-021-01269-4). If your study was pre-registered, we strongly encourage you to include the registration number in the pre-print, ideally in the abstract make this important information easy to retrieve, as this practice enhances transparency and reproducibility. If the study was not pre-registered, this should be acknowledged as a limitation. For future studies, we recommend pre-registering on an appropriate repository.<br /> About Protocol Sharing: <br /> We did not find the protocol for your study. If you have one, we encourage you to share it as supplementary material or deposit it in a publicly available repository such as the Open Science Framework ( https://osf.io ) or Zenodo ( https://zenodo.org/) "https://zenodo.org/)") . You can then include a statement in the Methods section indicating that your protocol is openly available (e.g., 'The protocol for this study is available at (link)/ in the supplementary'). Sharing your protocol will help readers better understand your study and enable them to reproduce it if they wish to test it.<br /> About the Statistical Analysis Plan Sharing: <br /> We did not find the Statistical Analysis Plan (SAP) for your study. If you have one, we encourage you to share it as supplementary material or deposit it in a repository such as the Open Science Framework ( https://osf.io ). You can then include a statement in the Methods section indicating that your protocol is openly available (e.g., 'The SAP for this study is available at (link)/ in the supplementary'). Sharing your SAP will help readers better understand your study and enable them to reproduce it if they wish to test it.<br /> About Deviations and/or changes<br /> We could not find any information about potential deviations or changes to the protocol in your pre-print. Since such deviations are common, if this applies to your study, we strongly encourage you to include a subsection titled Changes to the Initial Protocol in the Methods' section and discuss these changes as a potential limitation of your results. If any deviations occurred during your study, please specify them in this new subsection.<br /> About Data sharing / FAIR Data<br /> We found insufficient information about your data sharing approach. Data should be findable, i.e. data are assigned a globally unique and persistent identifier (for instance there is a DOI assigned to the dataset, or data are registered or indexed in a searchable resource). Data should also be accessible, i.e. data are retrievable by their identifier and can be accessed following an open, free, and universally implementable protocol. The protocol allows for an authentication and authorization procedure, where necessary. As your data contains sensitive data, we suggest to make it Findability, Accessibility, Interoperability, and Reuse ( https://www.go-fair.org/fair-principles/) "https://www.go-fair.org/fair-principles/)") by providing some details on this procedure.<br /> About Code sharing<br /> We could not find any information about your (statistical) code. Sharing code is important for enhancing transparency and reproducibility, especially since it does not contain sensitive information. We encourage you to openly share it on a code sharing platform (Github, Codepen, CodShare, etc.) and include the Digital Object Identifier (DOI) in the Methods section. If you want more information about Code sharing https://fair-software.nl/ .<br /> Comments :<br /> Dear authors,<br /> You did not publicly share your data but adequately justified why (confidentiality of data from patient records) and clearly explained the procedure for obtaining it, thank you. But is it possible to openly share the code ?

    1. On 2025-10-07 13:23:10, user Evolutionary Health Group wrote:

      We at the Evolutionary Health Group ( https://evoheal.github.io/) "https://evoheal.github.io/)") really enjoyed this paper.

      Here are our highlights:

      The study examines the effect of cigarette taxes on smoking behaviors (participation, cessation, and intensity) and whether these effects differ by polygenic indices and timing of exposure to cigarette taxes.

      The authors find that cigarette tax exposure during adolescence is a determinant of lifetime smoking status (cigarette tax is a deterrent of smoking participation), and the effect of cigarette taxes during adolescence is significantly higher for individuals with a higher genetic predisposition for smoking. The authors also find that ordinary least squares models underestimate the detrimental effects of smoking on chronic disease.

      Future studies can explore other genetic ancestries and within-family GWAS.

      Highlights the importance of youth-targeted tobacco taxes, taking into account the risk of initiating smoking.

    1. On 2025-10-18 14:47:45, user Evolutionary Health Group wrote:

      We at the Evolutionary Health Group ( https://evoheal.github.io/) "https://evoheal.github.io/)") really enjoyed this paper.

      Here are our highlights:

      The authors used metagenomic studies from the PARSIFAL study to determine if there is a difference in ARG/species abundance between 1) children who live on farms and 2) attend a Steiner school and geographically-matched reference groups.

      High-abundance taxa were similar across all groups. Most differences were observed within low-abundance and often individualized taxa

      GLM between ARG load and other study variables found that BMI, length of time having been breastfed, and age had significant negative relationships with ARG load, regardless of lifestyle

    1. On 2025-11-20 17:36:10, user Ceejay wrote:

      This study is very interesting.

      There are various exercise regimes popularly described in recent years for Long Covid sufferers, two often mentioned are 1. Graded Exercise Therapy and 2. Exercise Pacing. The former is characterised by a manageable but significant exercise level which is steadily increased, the latter is a strict regime of minimal exercise and only slowly increasing this as the person is able. A key difference between these methods is probably that Pacing is designed at such a low level of exertion that it avoids provoking PEM (Post-Exertional Malaise, starting a few days after the exercise), whereas Graded Exercise Therapy may provoke PEM and if properly monitored the exercise level should be reduced. Some opinion in favour of Pacing even states that GET is contra-indicated in LC. Part of the problem here is a lack of clarity in describing the two different exercise regimes.

      It would therefore help to know more about the exact exercise regimes you applied (lines 146 to 149):

      * List all exercises, and whether each was strength or cardiovascular exercise.

      * What were the criteria for starting exercise, and for incrementing or decrementing exercise (lines 149 to 153) during the 32 months.

      * Was PEM monitored for?

      * Would the schedules adopted fit into either of the two popular descriptions (GET vs Pacing) or could this even be dynamically changeable according to progress?

      * What was the typical level, duration and frequency of the maximum exercise undertaken by month 32 or at the asymptomatic point.

      * Do you have data on the periods to achievement of asymptomatic status (or end of trial)? Fig 3 provides no data at periods between 6 and 32 months.

      * Figure 3 suggests that by month 32, 45.5% of participants were still not asymptomatic, so can this statistic infer anything about the suitability or advisable emphasis of the exercise program?

      * Can the data from your study enable arbitration between GET and Pacing? e.g. could the prognostic point of 21 days inform the ongoing exercise program?

      Thank you.

    1. On 2020-04-03 17:03:45, user just maybe wrote:

      There are SIR models available that are more thorough.<br /> E.g. (Researchgate)

      Batista, Milan. (2020). Forecasting of final COVID-19 epidemic size (20/04/03).

    1. On 2020-04-07 03:18:15, user Tomas Hull wrote:

      Even if 2 strains of coV-2 exist, one more lethal than the other, the confirmation is far away. <br /> Why not look at the similarities between the populations of Italy, Spain, France, China? Antibiotic resistance is well documented. Smoking, comorbidities and their treatments, lead to upregulation of ACE2 receptors and therefore could account for lethality of the same virus strain and the supposed statistical anomalies...

    1. On 2020-06-23 19:40:15, user Roman Shein wrote:

      In an interview Hendrik Streeck claimed the specificity to be 99%. How? In March, when all mayhem just started to envelop! How were these test verified?<br /> At the same time, the very same Hendrik Streeck has co-authored a paper (published), that the antibody tests are rubbish, not fit to diagnose Covid. The specificity is around 88%. I admit the paper concerns antibody test usage at much earlier stage of the disease, but nevertheless his own assessment seems to contradict the claim about 99%.

      • The data from other sources suggests the specificity to be in the region of 85-90%. Due to this it seems reasonable to suggest that out every 15 people in "w antibodies", lets say, 12 (88% specificity, indeed) were, in fact, the false positives. In this case, what is left, 15-12=3% of population w the real immunity, not 15%! By comparison, the official infection rate was stated to be 3%...
    1. On 2020-06-25 15:24:39, user Nojan Aliahmad wrote:

      great work with very good control. The impact of unregulated cytokines and inflammatory compounds (such as CRP) on COVID-19 is a very important discussion. Future clinical trials can show how effective will be vitamin D supplements in reducing these unregulated compounds.<br /> Dexamethasone is the first drug showing success in reducing the mortality rate of COVID-19 in clinical trials. It also works on the principal of reducing unregulated cytokine.

    1. On 2020-06-26 09:28:20, user Dena E. Utne wrote:

      Al this study shows is that there wasn't a lot of Covid-19 around when they did the study. There wasn't enough Covid-19 around at the time of the study to make claims about the safety of gyms. It is disappointing to see the BBC summarizing the conclusions of this article, when the conclusions are not supported by the actual science. I don't think this article will or should pass peer review.

    2. On 2020-06-29 16:14:10, user xanthoptica wrote:

      Zero SARS-CoV2 infections in control group, one SARS-CoV2 infection in treatment group acquired before treatment (gym attendance - unclear if individual was prevented from going to gym based on positive test). Essentially zero statistical power. This study only tested whether there was enough coronavirus around Oslo to cause transmission at the gym in any conditions...and there was not.

    1. On 2020-06-26 16:22:15, user disqus_XufFG9Zovr wrote:

      Has this been adjusted for time?

      Do the masks just slow the spread and delay herd immunity?

      Is the total death in the community less over all time for mask wearers or is it just a technique to flatten the curve?

      Mortality per day is not an adequate goal. Total death must be considered as well.

    2. On 2020-07-03 14:59:40, user Uncle Long Hair wrote:

      A similar statistical analysis received many formal requests to be retracted "based on easily falsifiable claims and methodological design flaws":

      https://metrics.stanford.ed...

      There are many relevant variables, not only masks but population density, age of population, other precautions that were taken, etc. Correlation is not causation. Most studies have struggled to show statistically significant benefit to wearing masks.

    1. On 2020-07-03 03:58:20, user Pedro wrote:

      Considering that many doctors prescribe ivermectin as strongyloidiasis prophylaxis before the administration of high doses of corticosteroids, and that the use of dexamethasone has been shown to be effective in reducing mortality in patients with Covid-19 in RECOVERY Trial, was there any difference in the use of corticosteroids between the groups in this study?

    1. On 2025-02-23 14:32:17, user Shin jie Yong wrote:

      "Recently, a subset of non-classical<br /> monocytes has been shown to harbor S protein in patients with PVS [18]" - reference #18 cited Patterson et al. (2020), which might be an error since this study examined long covid participants only. My apologies if I'm mistaken, however.

    2. On 2025-02-24 06:06:47, user Daniel Corcos wrote:

      This work is a good start to appreciate the existence and organic nature of a post-vaccination syndrome. What worries me is the low number of control subjects. A much larger number of control subjects would allow adjustments to be made, particularly regarding the number of vaccine doses received.

    1. On 2020-07-07 16:15:43, user Michael Hombach wrote:

      Very interesting data!<br /> Pearson’s r quantifies the extend of the linear relation between two variables. Both variables are assumed to be continuous. Heavy-tailed distributions of the data, e.g. many values at the lower or upper end, might highly influence both Pearson’s r estimate. In addition, Pearson's correlation is not sufficiently robust against outliers.<br /> Spearman’s rank correlation ? is appropriate for both continuous as well as discrete ordinal variables. In contrast to Pearson’s r it does not assess the linear relation but the monotonic relation between two variables, based on the rank of the absolute values. Spearman’s ? is therefore better suited for heavy-tailed distributions than Pearson’s r. <br /> The paper includes already a proper calculation of agreement rates between the serological assays to the NT titre measurement values. The authors additionally use Pearson’s r to conclude about the performance of the assays. The paper and the conclusion would highly benefit from additionally presenting Spearman’s rank correlation coefficient since NT dilution rows depict non-continuous data that are heavy-tailed at the upper end. A final conclusion and discussion should be initialized based on both the agreement rates and the correlation of the assays based on Spearman’s rho. E.g. applying Spearman’s correlation to the presented line listing data based on R-package ‘spearman.CI’ (literature: de Carvalho, M. and Marques, F. J. (2012). Jackknife Euclidean likelihood-based inference for Spearman’s rho. North American Actuarial Journal, 16, 487–492.) we found rhos of 0.6714, 0.6768, 0.5854, 0.7583, 0.8131 for EI S1 IgA, EI S1 IgG, DiaSorin S1/S2 IgG, Abbott N IgG, and Roche N Ab, respectively.

    1. On 2020-07-11 18:20:51, user Joan Saldana wrote:

      Dear authors, since your average force of infection term lambda includes N in its denominator, I don't see why expressions (2) and (3) of R0 also include N. Suppose \rho=0 (exposed are not infectious) and x=1 for everybody. In this standard case, the infection term in (1) is beta·S·I/N and, then, R0=beta/gamma. From (2) and (3), however, it follows that in this case R0=(beta/N)/gamma, which is not correct. Am I missing something from the model? On the other hand, the values of R0 in the figures are reasonable, so perhaps this is typo. Thank you!

    1. On 2020-07-12 18:43:47, user Mario Moisés Alvarez wrote:

      Please share with us your opinion on this contribution. We really want to raise awareness on the importance of massive testing particularly in densely populated cities. <br /> Very Best. Stay safe.

    1. On 2019-07-17 16:54:37, user Guyguy wrote:

      EVOLUTION OF THE EBOLA EPIDEMIC IN THE PROVINCES OF NORTH KIVU AND ITURI

      Tuesday, July 16, 2019

      The epidemiological situation of the Ebola Virus Disease dated July 15, 2019:<br /> Since the beginning of the epidemic, the cumulative number of cases is 2,512, 2,418 confirmed and 94 probable. In total, there were 1,676 deaths (1,582 confirmed and 94 probable) and 703 people healed.<br /> 423 suspected cases under investigation;<br /> 11 new confirmed cases, including 5 in Beni, 2 in Mandima, 1 in Mabalako, 1 in Vuhovi, 1 in Katwa and 1 in Komanda;<br /> 8 new confirmed cases deaths:<br /> 3 community deaths, 2 in Beni and 1 in Mandima;<br /> 5 deaths at Ebola Treatment Center, including 4 in Beni and 1 in Goma;<br /> 3 people cured out of Ebola Treatment Center including 2 in Butembo and 1 in Katwa.

      136 Contaminated health workers

      The cumulative number of confirmed / probable cases among health workers is 136 (5% of all confirmed / probable cases), including 41 deaths.

      163,533 Vaccinated persons

      The only vaccine to be used in this outbreak is the rVSV-ZEBOV vaccine, manufactured by the pharmaceutical group Merck, following approval by the Ethics Committee in its decision of 19 May 2018.

      75,321,895 Controlled people

      NEWS

      Follow-up of the situation of the pastor's contacts who traveled to Goma

      On Monday, July 15, 2019, 37 high-risk contacts and 40 Goma confirmed case contacts were vaccinated at the Afia Himbi health center where the patient had been isolated before being transferred to the Ebola Treatment Center. In total, 97 contacts in the broad sense have already been listed to date. Vaccination will continue until all identified contacts have been vaccinated.<br /> Among the contacts identified were two women from the pastor's family traveling with him. After the pastor's transfer to CTE, they hid in Goma and some people thought they fled to Bukavu in South Kivu province. Fortunately, the two women were found in Goma on Tuesday and will be vaccinated.

    1. On 2019-08-03 19:22:31, user GuyguyKabundi Tshima wrote:

      Dear all, here is the daily bulletin on the evolution of the response to the Ebola Virus Disease outbreak of 01 August 2019. The field information verification process has been more painful because of the sensitivity of the events on the ground. .<br /> Please be indulgent for the delay.

      EVOLUTION OF THE EBOLA EPIDEMIC IN THE PROVINCES OF NORTH KIVU AND ITURI

      Thursday, August 01, 2019

      Epidemiological Status of Ebola Virus Disease as of 31 July 2019

      Since the beginning of the epidemic, the cumulative number of cases is 2,713, of which 2,619 confirmed and 94 probable. In total, there were 1,823 deaths (1,729 confirmed and 94 probable) and 782 people healed.<br /> 423 suspected cases under investigation;<br /> 13 new confirmed cases, including 5 in Beni, 2 in Mabalako, 2 in Mandima, 1 in Nyiragongo (Goma), 1 in Vuhovi, 1 in Katwa and 1 in Mutwanga;<br /> 10 new confirmed cases deaths:<br /> 2 community deaths, including 1 in Beni and 1 in Mandima;<br /> 7 Ebola Treatment Center (ETC) deaths, including 3 in Beni, 2 in Mabalako, 1 in Komanda and 1 in Goma;<br /> 1 death at the ETC of Beni;<br /> 6 people cured out of ETC, including 5 in Beni and 1 in Katwa;<br /> One health worker, living and vaccinated, is among the new confirmed cases in Beni. The cumulative number of confirmed / probable cases among health workers is 149 (5% of all confirmed / probable cases), including 41 deaths.

      NEWS

      As a reminder, the recommendations of the Ministry of Health are as follows:<br /> Follow basic hygiene practices, including regular hand washing with soap and water or ashes;<br /> If an acquaintance from an epidemic area comes to visit you and is ill, do not touch her and call the North Kivu civil protection hotline directly;<br /> If you are identified as an Ebola patient contact, agree to be vaccinated and followed for 21 days;<br /> If a person dies because of Ebola, follow the rules for safe and dignified burials. It is simply a funeral method that respects funerary customs and traditions while protecting the family and community from Ebola contamination.<br /> For all health professionals, observe the hygiene measures in the health centers and declare any patient with symptoms of Ebola (fever, diarrhea, vomiting, fatigue, anorexia, bleeding).<br /> If all citizens respect the sanitary measures recommended by the Ministry of Health, it is possible to ensure that this case of Ebola detected in Goma is only a sporadic case that does not cause a new outbreak.

      Follow-up of the situation of contacts of the second case confirmed Ebola of Goma<br /> 151 contacts have been reported around the 2nd confirmed case of EVD in Goma since 22 July 2019. Among these contacts, 118 have already been vaccinated, including 70 at high risk (CHR) and 48 contact contacts (CC);<br /> The girl and the woman of this case of Goma constitute to date the 3rd and 4th positive cases of EVD recorded in Goma;<br /> The sister of this same case, who fled to the province of South Kivu, was found in Biara in the health zone of Muti Muresa. 40 contacts have already been vaccinated around this contact this Thursday, August 1, 2019, including 9 high-risk contacts and 31 contacts.

      A traditional healer among the confirmed cases of Mabalako<br /> This is a 25 year old man, living and vaccinated on July 20, 2019 (geographical vaccination). He practiced self-medication on July 24-29, 2019 with a gradual worsening of symptoms.

      It was taken to the CTE after validation on July 30, 2019 after the alert launched by a Community Relay (ReCo). It was confirmed MVE on July 31, 2019. 22 contact persons are listed around this case, whose investigations are ongoing.<br /> The confirmed case of Lubero on the run<br /> The confirmed case of July 25, 2019 in Lubero Health Zone (ZS), who fled into the community, is reported to be in Lukanga in the Masereka SZ, 17 km from Lubero. A team went there on Thursday, August 1st, 2019 for its transfer to CTE.

      80,481,013<br /> Controlled people<br /> 98 entry points (PoE) and operational sanitary control points (PoC).

      149<br /> Contaminated health workers<br /> 1 health workers, living and vaccinated, are among the new confirmed cases of Beni.<br /> The cumulative number of confirmed / probable cases among health workers is 149 (5% of all confirmed / probable cases) including 41 deaths.

      Source: The press team of the Ministry of Health.

    2. On 2019-09-30 05:15:29, user Guyguy wrote:

      EVOLUTION OF THE EPIDEMIC IN THE PROVINCES OF NORTH KIVU AND ITURI AS AT SEPTEMBER 22, 2019

      The epidemiological situation of the Ebola Virus Disease dated September 22, 2019

      Monday, September 23, 2019

      Since the beginning of the epidemic, the cumulative number of cases is 3,168, of which 3,057 are confirmed and 111 are probable. In total, there were 2.118 deaths (2007 confirmed and 111 probable) and 975 people healed. <br /> • 343 suspected cases under investigation; <br /> • 4 new confirmed cases, including: <br /> • 1 in North Kivu in Butembo; <br /> • 3 in Ituri, including 2 in Mandima and 1 in Mambasa. <br /> • 3 new confirmed deaths, including: <br /> • 2 community deaths, including 1 in North Kivu in Butembo and 1 in Ituri in Mambasa; <br /> • 1 confirmed death in Ituri in Mandima. <br /> • No health worker is among the new confirmed cases. The cumulative number of confirmed / probable cases among health workers is 160 (5% of all confirmed / probable cases), including 41 deaths.

      NEWS

      Beginning of trainers training in Goma on good clinical practices related to the second Ebola vaccine <br /> • The Ebola Virus Disease Response Information Management Coordinator, representing the Technical Secretariat, Mathias Mossoko, launched on Monday in Goma the training of trainers which runs from 23 to 28 September 2019 on the good clinical practices (PCBs) related to the second Ebola vaccine. <br /> • This training benefits from the expertise of CVD's Malians on the transmission of notions about good clinical practice. It aims to provide participants with the standards applicable to the design, conduct, monitoring and stopping of studies, to teach them the activities of audit, analysis, reporting and documentation with the guarantee that these studies 'rely on sound scientific and ethical principles. It is also intended to introduce participants to the correct documentation of the clinical properties of the vaccine tested or evaluated. <br /> • The Response Information Management Coordinator called the attendance participants to demonstrate better actors for the implementation of good practice in this second vaccine. <br /> • For its part, the chairman of the Immunization Committee, Stéphane Hans, said that this five-day training announces the forthcoming launch of the second vaccine that will come at any time in the targeted health zones. "We welcome this supplementary vaccine very positively compared to the first vaccine. This second vaccine has the advantage of preventing all strains of the Ebola virus. It is therefore positive for the population that will receive it, "he said while inviting all communities targeted by this vaccination to take ownership of this activity, once launched. <br /> • The training on good clinical practice will revolve around several presentations on different topics, among others, the Ebola virus disease, the responsibilities of the INRB for the QA system, study vaccines (storage, management, chain cold and accounting), inclusion and follow-up of pregnant women, community involvement and informed consent, etc. <br /> • This training was organized for the different actors involved in this project, including doctors, epidemiologists, clinicians and pharmacists. A total of 25 people from Kinshasa, including the INRB, UNIKIN, CUK and specialized programs and North Kivu, including the Provincial Health Inspectorate (IPS), the Provincial Division of Health Centers (DPS) and Health Zone Coordinating Offices (BCZS) are participating in this meeting. <br /> As a reminder, the recommendations of the MULTISECTORAL COMMITTEE ON THE RESPONSE TO THE EBOLA VIRUS DISEASE are as follows: * <br /> 1. Follow basic hygiene practices, including regular hand washing with soap and water or ashes; <br /> 2. If an acquaintance from an epidemic area comes to visit you and is ill, do not touch her and call the North Kivu Civil Protection toll-free number; <br /> 3. If you are identified as a contact of an Ebola patient, agree to be vaccinated and followed for 21 days; <br /> 4. If a person dies because of Ebola, follow the instructions for safe and dignified burials. It is simply a funeral method that respects funerary customs and traditions while protecting the family and community from Ebola contamination. <br /> 5. For all health professionals, observe the hygiene measures in the health centers and declare any person with symptoms of Ebola (fever, diarrhea, vomiting, fatigue, anorexia, bleeding). <br /> If all citizens respect these health measures recommended by the Secretariat, it is possible to quickly end this 10th epidemic.

      VACCINATION <br /> Opening of an expanded vaccination ring around two confirmed cases from 19-21 Sept 2019 in the Madidi health area in Mambasa, Ituri. Another satellite ring was opened at the Kitatumba General Referral Hospital in the Butembo Health Zone in North Kivu around the case notified on 22 09 2019. This case started the disease in the health area of Kasindi in Mutwanga, North Kivu. <br /> • The Expanded Program of Vaccines has received 4320 doses of vaccine at the national level; <br /> • Since vaccination began on August 8, 2018, 226,722 people have been vaccinated; <br /> • The only vaccine to be used in this outbreak is the rVSV-ZEBOV vaccine, manufactured by the pharmaceutical group Merck, following approval by the Ethics Committee in its decision of 20 May 2018.

      MONITORING AT ENTRY POINTS <br /> • High-risk contact was intercepted at Kangote PoC in Butembo, North Kivu. This is a 28-year-old unvaccinated woman on the 14th day (D14) follow-up who was listed around a confirmed case in the Katwa Health Zone. During her interception, this woman presented some signs related to the #Ebola Virus Disease. She was sent to the Butembo CTE for treatment. <br /> • Kituku PoC providers in Goma, North Kivu, were assaulted by about 20 onlookers called "Maibobo" who were avenging one of their drowned during the night of 20 to 21 September 2019. These providers feel insecure and ask to be supported by officers of the National Police (PNC) or FARDC. <br /> • Since the beginning of the epidemic, the total number of travelers checked (temperature measurement) at the sanitary control points up to 22 September 2019 is 96,998,860; <br /> • To date, a total of 111 entry points (PoE) and sanitary control points (PoCs) have been set up in the provinces of North Kivu and Ituri to protect the country's major cities and prevent the spread of the epidemic in neighboring countries.


      LEXICON <br /> • A community death is any death that occurs outside a Ebola Treatment Center. <br /> • A probable case is a death for which it was not possible to obtain biological samples for confirmation in the laboratory but where the investigations revealed an epidemiological link with a confirmed or probable case.

    3. On 2019-10-04 22:38:03, user GuyguyKabundi Tshima wrote:

      EVOLUTION OF THE EPIDEMIC IN THE PROVINCES OF NORTH KIVU AND ITURI AS AT 03 OCTOBER 2019

      Friday, October 04, 2019

      Since the beginning of the epidemic, the cumulative number of cases is 3,201, of which 3,087 are confirmed and 114 are probable. In total, there were 2.139 deaths (2025 confirmed and 114 probable) and 999 people cured.<br /> 451 suspected cases under investigation;<br /> 3 new confirmed cases, including:<br /> 1 in North Kivu in Beni;<br /> 2 in Ituri, including 1 in Mambasa and 1 in Mandima;<br /> 2 new confirmed deaths in North Kivu, including 1 in Beni and 1 in Mabalako;<br /> 4 people healed from the CTE in North Kivu in Beni;<br /> No health workers are among the newly confirmed cases. The cumulative number of confirmed / probable cases among health workers is 161 (5% of all confirmed / probable cases), including 41 deaths.<br /> Day 18 without response activities in the Lwemba Health Area in Mandima, Ituri.

      LEXICON<br /> • A community death is any death that occurs outside a Ebola Treatment Center.<br /> • A probable case is a death for which it was not possible to obtain biological samples for confirmation in the laboratory but where the investigations revealed an epidemiological link with a confirmed or probable case.

      NEWS<br /> The 10th Ebola Virus Disease epidemic in the DRC reaches its 1000th cure<br /> - The thousandth cured of the Ebola Virus Disease came out Friday of the Mangina CTE in Mabalako in North Kivu Province;<br /> - Indeed, this 1000th cured is part of four healed Friday of this CTE. It is about a woman, quarantine gone, case contact of her nephew with the Air of Health of Lwemba with Mandima in Ituri. As soon as she felt the fever, she went to the Health Center, where she was detected as a suspected case and transferred directly to the CTE. She was confirmed and followed her treatment until recovery. She advises the population to go quickly to the Health Center and not fear the CTE to cure Ebola Virus Disease;<br /> - Among these four cures, there is also a health provider. This is an ambulance hygienist, the 1001 st healed, who was contaminated during the unloading of his personal protective equipment (PPE). He recommended a lot of protection and precautions to all hygienists when removing PPE. And in case of possible contamination, do not panic, but rather go quickly to the Health Center for appropriate treatment;<br /> - For the Ebola Epidemic Epidemic Response Coordinator, Dr. Faustin Bile Saka, these healers will be the ambassadors for the response in their respective communities and testify that when we arrive early we have the chance to come out healed like them. He handed out the certificates of release to the cured, with the various partners of the response, WHO and IMC to the 1000, 1001, 1002 and 1003 th cures of the Ebola Virus Disease in the DRC;<br /> - As a miracle, the 10th epidemic of the Ebola Virus Disease began around the end of July 2018 and declared in early August 2019 in Mangina and it is still in Mangina, where came the 1000th cured.

      VACCINATION

      • Since vaccination began on August 8, 2018, 232,725 people have been vaccinated;
      • The only vaccine to be used in this outbreak is the rVSV-ZEBOV vaccine, manufactured by the pharmaceutical group Merck, following approval by the Ethics Committee in its decision of 20 May 2018.

      MONITORING AT ENTRY POINTS

      • Since the beginning of the epidemic, the total number of travelers checked (temperature measurement ) at the sanitary control points is 102,092,950 ;
      • To date, a total of 111 entry points (PoE) and sanitary control points (PoCs) have been set up in the provinces of North Kivu and Ituri to protect the country's major cities and prevent the spread of the epidemic in neighboring countries.

      As a reminder, the recommendations of the MULTISECTORAL COMMITTEE OF THE RESPONSE TO EBOLA VIRUS DISEASE are as follows:

      1. Follow basic hygiene practices, including regular hand washing with soap and water or ashes;
      2. If an acquaintance from an epidemic area comes to visit you and is ill, do not touch her and call the North Kivu Civil Protection toll-free number;
      3. If you are identified as a contact of an Ebola patient, agree to be vaccinated and followed for 21 days;
      4. If a person dies because of Ebola, follow the instructions for safe and dignified burials. It is simply a funeral method that respects funerary customs and traditions while protecting the family and community from Ebola contamination.
      5. For all health professionals, observe the hygiene measures in the health centers and declare any person with symptoms of # Ebola (fever, diarrhea, vomiting, fatigue, anorexia, bleeding).<br /> If all citizens respect these health measures recommended by the Secretariat, it is possible to quickly end this 10th epidemic.
    4. On 2019-10-07 13:54:02, user GuyguyKabundi Tshima wrote:

      EPIDEMIOLOGICAL SITUATION

      EVOLUTION OF THE EBOLA EPIDEMIC IN THE PROVINCES OF NORTH KIVU AND ITURI OCTOBER 05, 2019<br /> Sunday, October 06, 2019<br /> Since the beginning of the epidemic, the cumulative number of cases is 3,204, of which 3,090 are confirmed and 114 are probable. In total, there were 2,142 deaths (2028 confirmed and 114 probable) and 1004 people healed.<br /> 414 suspected cases under investigation;<br /> No new cases confirmed;<br /> 1 new confirmed death at CTE in Ituri in Komanda;<br /> No one healed out of ETCs;<br /> No health workers are among the newly confirmed cases. The cumulative number of confirmed / probable cases among health workers is 161 (5% of all confirmed / probable cases), including 41 deaths.<br /> Day 19 without response activities in the Lwemba Health Area in Mandima, Ituri, where the dialogue continues in the community.

      NEWS

      Reconciliation between displaced people from Lwemba to Biakato and communities left in Lwemba in Mandima in Ituri

      The Lwemba communities that moved to Biakato in Mandima in Ituri reconciled on Sunday 06 October 2019 with the communities that had remained in Lwemba in the presence of the response team led by the Deputy General Coordinator, Dr. Justus Nsio Mbeta, head of the Cheffery and Mandima MCZ, coordinator of Mangina's sub-coordination of the response, as well as some partners from the Ministry of Health, including WHO, MSF, UNICEF and United Nations ;<br /> - From this meeting, follows the following recommendations: setting up a community committee to support the response, the local recruitment of sensitizers in the monitoring of community-based surveillance, decontamination and the workforce in the community. burning houses. The Ministry of Health has promised the next supply of drugs to Lwemba;<br /> - The Deputy General Coordinator for the Ebola Virus Epidemic Response, representing the Ministry of Health and the Technical Secretariat of the CMRE, Dr. Justus Nsio Mbeta, took this opportunity to recall the regulatory role of the Ministry of Health and the role of each partner involved in the response;<br /> - For the community victim of the fire, they ask for the guarantee of their security, the emergency humanitarian aid, the compensation of their destroyed property and the reconstruction of their burned houses, the commitment or the hiring of all victims in the various services at all levels, the immediate arrest of all the alleged perpetrators of these uncivil acts and the care of the children affected;<br /> - These fires occurred following the death of a nurse from Lwemba, confirmed with Ebola Virus Disease. His death sparked the uprising of the population to burn down the houses and other property of all the unknowns of Lwemba. This remains the cause, even, the cessation of the activities of the response in this Health Area for more than 15 days;<br /> - The leaders of the Lwemba community also asked for the construction of the houses for the displaced, the organization of an intercommunal dialogue session by the Administrator of the territory or his delegate and the rehabilitation of the road leading to Lwemba ;<br /> - In the response, WHO is responsible for epidemiological surveillance, communication and prevention against infection (IPC) and immunization, UNICEF is in charge of communication, psychosocial care and PCI, MSF and ALIMA take care of the treatment of patients in Ebola treatment center and PCI and psychosocial support within CTE, WFP brings food products to contacts, IOM deals with Entry and Control Points (water supply, soap and chlorine);<br /> - As for the National Institute for Biomedical Research (INRB), Dr. Nsio stated that he is in charge of the diagnosis and gives MSF and ALIMA the medicines to treat patients with CTE.<br /> - The World Health Organization has pledged to rebuild burned houses, to provide community surveillance (community watch) and investigations of all suspected cases, as well as to build a transit center in LWEMBA, while UNICEF has pledged to improve communication and awareness through the use of space, to support ICH, decontamination and psychosocial, to provide water sources and to build latrines in 5 priority schools;<br /> - On the other hand, Médecins Sans Frontières intends to help the community of Lwemba to resume primary health care, to organize triage in the Health Zones present in the village and to break the PCI, as well as to train sensitizers;<br /> - At the end of this Lwemba meeting, all partners, including WHO, UNICEF and MSF, met around the Deputy General Coordinator at the Biakato Reference Health Center to review the joint and shared planning of activities in Lwemba.

      VACCINATION

      • Since vaccination began on August 8, 2018, 234,108 people have been vaccinated;
      • The only vaccine to be used in this outbreak is the rVSV-ZEBOV vaccine, manufactured by the pharmaceutical group Merck, following approval by the Ethics Committee in its decision of 20 May 2018.

      MONITORING AT ENTRY POINTS

      • Three high-risk contacts were intercepted on Saturday 05 October 2019 at Maboya Checkpoint (PoC) in Butembo. They are all from the same family and came from the Kabasha Health Area to Kalunguta for Bunyuka in Vuhovi;
      • They are all contacts of a confirmed case, died of the Ebola Virus Disease (EVD) of September 30, 2019 in Kabasha;
      • The first contact is an unvaccinated 8-year-old girl who presented fever at 38 ° C. She was taken to the CTE of Butembo for the care after validation of the alert was validated;
      • The 2nd contact is a 24 year old man vaccinated and asymptomatic. He is the biological father of the first contact;
      • 3rd contact, first contact grandmother, 54 years old, unvaccinated and asymptomatic;
      • Since the beginning of the epidemic, the cumulative number of travelers checked (temperature measurement ) at the sanitary control points is 102,840,774 ;
      • To date, a total of 111 entry points (PoE) and sanitary control points (PoCs) have been set up in the provinces of North Kivu and Ituri to protect the country's major cities and prevent the spread of the epidemic in neighboring countries.

      As a reminder, the recommendations of the MULTISECTORAL COMMITTEE OF THE RESPONSE TO EBOLA VIRUS DISEASE are as follows:

      1. Follow basic hygiene practices, including regular hand washing with soap and water or ashes;
      2. If an acquaintance from an epidemic area comes to visit you and is ill, do not touch her and call the North Kivu Civil Protection toll-free number;
      3. If you are identified as a contact of an Ebola patient, agree to be vaccinated and followed for 21 days;
      4. If a person dies because of Ebola, follow the instructions for safe and dignified burials. It is simply a funeral method that respects funerary customs and traditions while protecting the family and community from Ebola contamination.
      5. For all health professionals, observe the hygiene measures in the health centers and declare any person with symptoms of # Ebola (fever, diarrhea, vomiting, fatigue, anorexia, bleeding).<br /> If all citizens respect these sanitary measures recommended by the Secretariat, it is possible to quickly end this 10th epidemic.
    5. On 2019-10-16 13:01:03, user GuyguyKabundi Tshima wrote:

      EVOLUTION OF THE EPIDEMIC IN THE PROVINCES OF NORTH KIVU AND ITURI AS AT OCTOBER 13, 2019<br /> Monday, October 14, 2019<br /> Since the beginning of the epidemic, the cumulative number of cases is 3,220, of which 3,106 confirmed and 114 probable. In total, there were 2,150 deaths (2036 confirmed and 114 probable) and 1033 people healed.<br /> 383 suspected cases under investigation;<br /> 2 new confirmed cases at CTE in Ituri in Mandima;<br /> No new confirmed deaths have been recorded;<br /> 1 person healed out of CTE in Ituri in Mambasa;<br /> No health workers are among the newly confirmed cases. The cumulative number of confirmed / probable cases among health workers is 161 (5% of all confirmed / probable cases), including 41 deaths.

      NEWS

      Governors of North Kivu and Ituri Raise Awareness on Ebola Virus Disease in Biakato, Ituri<br /> - The Technical Secretariat of the Multisectoral Ebola Epidemic Response Committee (CMRE) in collaboration with the Governor of North Kivu, Carly Nzanzu and Ituri, Jean Bamanisa, organized this Monday October 14, 2019 an awareness raising day on Ebola Virus Disease in Biakato, Ituri;<br /> - This tripartite awareness-raising aimed to share the experience of North Kivu on Ebola Virus Disease and to show that the movement of people between the two provinces can encourage further spread of this epidemic in the region, as much as the last four cases recorded in North Kivu (in Beni and Kalunguta) came from Biakato;<br /> - The governor of North Kivu has indeed responded favorably to the invitation of the Technical Secretariat of the CMRE because he wants to reinforce the surveillance in his province and refuses to see his province plunge into the epidemic;<br /> - To achieve their objectives the two governors were accompanied each by a strong delegation, where one finds the presidents of their provincial assemblies and some influential deputies of their respective countries;<br /> - In addition, the Ebola Virus Epidemic Response Coordination Team, which has been in the Mambasa Health Zone in Ituri for the past week, has been monitoring Bavalakaniki Control Points and Mabakese in this health zone.

      VACCINATION

      • Since vaccination began on 8 August 2018, 237,956 people have been vaccinated;
      • The only vaccine to be used in this outbreak is the rVSV-ZEBOV vaccine, manufactured by the pharmaceutical group Merck, following approval by the Ethics Committee in its decision of 20 May 2018.

      MONITORING AT ENTRY POINTS

      • Since the beginning of the epidemic, the total number of checked travelers (temperature rise) at the sanitary control points is 105,840,505 ;
      • To date, a total of 111 entry points (PoE) and sanitary control points (PoCs) have been set up in the provinces of North Kivu and Ituri to protect the major cities of the country. countries and prevent the spread of the epidemic in neighboring countries.

      As a reminder, the recommendations of the MULTISECTORAL COMMITTEE OF THE RESPONSE TO EBOLA VIRUS DISEASE are as follows:

      1. Follow basic hygiene practices, including regular hand washing with soap and water or ashes;
      2. If an acquaintance from an epidemic area comes to visit you and is ill, do not touch her and call the North Kivu Civil Protection toll-free number;
      3. If you are identified as a contact of an Ebola patient, agree to be vaccinated and followed for 21 days;
      4. If a person dies because of Ebola, follow the instructions for safe and dignified burials. It is simply a funeral method that respects funerary customs and traditions while protecting the family and community from Ebola contamination.
      5. For all health professionals, observe the hygiene measures in the health centers and declare any person with symptoms of # Ebola (fever, diarrhea, vomiting, fatigue, anorexia, bleeding).<br /> If all citizens respect these health measures recommended by the Secretariat, it is possible to quickly end this 10th epidemic.
    6. On 2019-11-19 17:15:54, user Guyguy wrote:

      EPIDEMIOLOGICAL SITUATION OF THE EVOLUTION OF THE EBOLA VIRUS DISEASE EPIDEMIC IN THE PROVINCES OF NORTH KIVU AND ITURI IN THE DEMOCRATIC REPUBLIC OF THE CONGO AT NOVEMBER 17, 2019

      Monday, November 18, 2019

      • Since the beginning of the epidemic, the cumulative number of cases is 3,296, of which 3,178 are confirmed and 118 are probable. In total, there were 2,196 deaths (2,078 confirmed and 118 probable) and 1,070 people healed.<br /> • 407 suspected cases under investigation;<br /> • 4 new confirmed cases in North Kivu, including 2 in Mabalako, 1 in Beni and 1 in Oicha;<br /> • 1 new death of confirmed cases, including:<br /> o 1 new community death in North Kivu in Oicha;<br /> o No new deaths among confirmed cases in CTEs;<br /> • No cured person has emerged from CTEs;<br /> • No health worker is among the new confirmed cases. The cumulative number of confirmed / probable cases among health workers is 163 (5% of all confirmed / probable cases), including 41 deaths;

      NEWS

      NOTHING TO REPORT

      VACCINATION

      • 147 people were vaccinated, until Saturday, November 16, 2019, with the 2nd Ad26.ZEBOV / MVA-BN-Filo vaccine (Johnson & Johnson) in the two health zones of Karisimbi in Goma;

      • Since the start of vaccination on August 8, 2018 with the rVSV-ZEBOV vaccine, 253,545 people have been vaccinated;

      • Approved October 22, 2019 by the Ethics Committee of the School of Public Health of the University of Kinshasa and October 23, 2019 by the National Ethics Committee, the second vaccine, called Ad26.ZEBOV / MVA-BN -Filo, is produced by Janssen Pharmaceuticals for Johnson & Johnson;

      • This new vaccine is in addition to the first, the rVSV-ZEBOV, vaccine used until then (since August 08, 2018) in this epidemic manufactured by the pharmaceutical group Merck, after approval of the Ethics Committee on May 20, 2018. has recently been approved.

      MONITORING AT ENTRY POINTS

      • New positive case among Mukulya Checkpoint alerts in Beni, North Kivu. It is a lifeless body of a 35-year-old man from Oicha for burial at Kabasha in Butembo;<br /> • Since the beginning of the epidemic, the total number of travelers checked (temperature rise) at the sanitary control points is 117,987,763 ;

      • To date, a total of 112 entry points (PoE) and sanitary control points (PoCs) have been set up in the provinces of North Kivu and Ituri to protect the country's major cities and prevent the spread of the epidemic in neighboring countries.

      As a reminder, the recommendations of the MULTISECTORAL COMMITTEE OF THE RESPONSE TO EBOLA VIRUS DISEASE are as follows:

      1. Follow basic hygiene practices, including regular hand washing with soap and water or ashes;
      2. If an acquaintance from an epidemic area comes to visit you and is ill, do not touch her and call the North Kivu Civil Protection toll-free number;
      3. If you are identified as a contact of an Ebola patient, agree to be vaccinated and followed for 21 days;
      4. If a person dies because of Ebola, follow the instructions for safe and dignified burials. It is simply a funeral method that respects funerary customs and traditions while protecting the family and community from Ebola contamination.
      5. For all health professionals, observe the hygiene measures in the health centers and declare any person with symptoms of Ebola (fever, diarrhea, vomiting, fatigue, anorexia, bleeding).<br /> If all citizens respect these health measures recommended by the Secretariat, it is possible to quickly end this 10th epidemic.
    1. On 2019-10-28 19:46:45, user Mark Yarbrough wrote:

      Does anybody have any code examples of how to extract data in the proper structure from the MIMICIII data, (I have official access), into PheWAS for r? I/We are working on our practicum and focusing on type - 2 diabetes - we also want to try clustering on such data using K-mediods for mixed-type features in many columns - with ICD9 codes one-hot encoded.

    1. On 2020-01-25 10:47:13, user stucash wrote:

      I am not sure if this is due to the "preprint" nature of paper, but a few points that look a bit suspicious:<br /> 1. The actual data set used to conduct the estimation was not disclosed in paper;<br /> 2. The research method for estimation was also not disclosed in paper<br /> 3. Reasoning for the employed assumptions and not others? Reasoning for the employed transmission model and not others? Apparently this should be part of research method elaboration yet there's none. <br /> 4. Do all med papers come in this short?? This paper is just too descriptive and only estimation results were presented.

      I'd really wait for a full-fledged version, I am reluctant to call this research.

    2. On 2020-01-26 02:10:01, user Dzogchen wrote:

      The r0 estimated here at 3.8 seems significantly higher than first estimates by WHO and is likely the biggest factor and assumption above. Only thing I think we can say for certain is r0 is > 1 at this point.

    3. On 2020-01-27 17:59:25, user robertinventor wrote:

      Just to say the author of this paper tweeted that they now estimate it as 2.5 95% CI 2.4, 2.6 for R0 which would change all the projectons.

      This version says 3.8 (95% confidence interval, 3.6-4.0),

      Likely those confidence intervals need revising to, if it changes so much with an extra day of data. It is a non peer reviewed preprint.

      https://twitter.com/JonRead...

    4. On 2020-01-27 18:30:54, user Cyborg Gabe wrote:

      In reviewing the supplementary model details, I note that the rate of exposure in each city is assumed to be directly proportional to the number of infected individuals in that city. However, if quarantine measures being taken in affected areas are at all successful, then this assumption will not be correct. Instead, a declining proportion of the infected will infect others as successful quarantines take effect. I suspect that implementing this change in the model would significantly change the model predictions, though it would require some method of estimating the success of the quarantines.

    1. On 2020-01-28 21:44:55, user Nan-Hung Hsieh wrote:

      A minor comment for your result. According to the code you shared, the interval you used in the paper is confidence interval, not credible interval. For example, on page 4, the 95% credible interval should be [4.5, 7.5]. You can use bayestestR package to double-check the result.

    1. On 2020-02-06 06:41:02, user Ben Berman wrote:

      I want to point out that we recently reported a strong association between global hypomethylation and a proliferative gene expression signature (including key cell cycle markers like FOXM1) in a pan-cancer analysis of TCGA tumors (Zhou and Dinh et al., Nat. Genetics 2018 https://doi.org/10.1038/s41... ). We also reported increased copy number alterations and transposable element insertions in the hypomethylated tumors. We proposed a passive demethylation mechanism, whereby late replicating regions are less efficiently maintained during mitosis in both normal and cancer cells, resulting in both age- and cancer-associated hypomethylation. In our pan-cancer analysis, we found relatively high expression of DNMTs and UHRF1 in hypomethylated tumors, so your findings of low expression in these genes may be a consequence of your normalization to proliferation markers, or something ovarian cancer specific (we did not include ovarian cancer in our analysis, since we did not have 450k data for that cancer type). Please let me know if you have any questions.

    1. On 2020-02-16 21:25:17, user Paul Curto wrote:

      You can check this site for daily updates:

      https://www.worldometers.in...

      The formula which you may use to provide a first-order estimate for <br /> how many deaths daily may occur within a given number of days can be <br /> expressed by:

      1.1 raised to the power of the number of days into the future from today, times the current daily death toll

      The 1.1 is the ratio of today's death toll divided by yesterday's <br /> death toll as of February 12, 2020. We may use a three day running <br /> average to smooth out the data for spurts of death.

      If you use this data and formula, you get over half a million deaths per day within 90 days.

      You get over 10 million deaths per day after 120 days.

      You get a number in the billions by Thanksgiving.

      So much for a seasonal flu. This is a weaponized killer of billions of people.

      Since the cat is out of the bag and we still allow cruise ships and <br /> aircraft to use the facilities of over 27 nations outside of China that <br /> have infections, we won't be far behind, at most a few weeks, before we <br /> succumb. Expect a very sad Christmas, indeed.

    1. On 2020-02-27 04:02:53, user ShangShang Gao wrote:

      They recruited 125 patients from Nanjing Second Hospital, of which 103 were patients with new coronary pneumonia. The official data till 2.27 showed a total of 93 confirmed diagnoses in Nanjing. How did this sample data come?

    1. On 2020-02-28 01:21:33, user RQ wrote:

      It was an easy method to calculate the true T value and CFR without any indigestible mathematical formulas or models requiring severe calculating conditions. Actually, when different T was assumed, if it was smaller (bigger) than the true T, calculated daily CFRs would gradually increase (decrease) to infinitely near the true CFR with time went on. Left of true T is decreasing, right is increasing,so T could be easily determined, then the true CFR could be calculated. The calculated true CFR had accurately predicted the death numbers more than two weeks continuously

    1. On 2020-03-02 16:40:24, user Abed Ghanbari wrote:

      We estimated that 18,300 (95% confidence interval: 3770 – 53,470) COVID-19 cases would have had to occur in Iran, assuming an outbreak duration of 1.5 months in the country, in order to observe these three internationally exported cases reported at the time of writing.

      How did you reach to these numbers?

    1. On 2020-03-08 05:57:17, user James Nokes wrote:

      Highly informative paper. Thank you. A few points/questions:

      1. Table 1 indicates it is contact-based surveillance with higher proportion male than female contrary to the results text.

      2. How was temperature measured and what was the definition of fever?

      3. How were nasal samples collected (eg nasopharyngeal swab, per-nasal swab, aspirates). Did the method differ for contact and case-based surveillance?

      4. Assessing severity status - (i) can you clarify if moderate required all three of fever, respiratory symptoms, and radiographic evidence of pneumonia? What is included in 'respiratory symptoms'? (ii) How did you measure oxygen saturation?

      5. Table S1. It would be useful to include the proportions with fever. The proportion of cases from symptom-based surveillance with shortness of breath (4%) or difficulty breathing (3%) is remarkably low.

    2. On 2020-03-16 13:08:45, user Karl Milhon wrote:

      I have been pushing for people to investigate the role of children in transmission very hard since the Chinese CDC first put out their descriptive epi piece. there are numerous articles and quotes pointing toward this element of Covid 19 transmission but it appears that no one is truly trying to get at the problem. Simply utilizing serology testing to do quick and dirty seroprevalence studies would provide some insight. Singapore has developed and utilized some decent serologic tests. I do not understand why this is not being more aggressively pursued.

    1. On 2020-03-11 10:09:13, user Bob Phillips wrote:

      Needs the units for bilirubin and ALT, and a very clear description of WHEN these lab tests were taken ('predicting' severe disease when a child has severe liver dysfunction on an ICU isn't that useful)

    1. On 2020-03-13 23:55:07, user Cadence C wrote:

      Singapore health ministry stated that pre-symptomatic transmission is not a prominant mode. How did the authors conclude that 40% to 80% there are asymptomatic transmission ?

    1. On 2020-03-14 16:58:24, user J Belcar wrote:

      RE immune imprinting, has anyone looked at attack rate or severity of illness in relation to previous (or recent) influenza vaccine?

    1. On 2020-03-20 11:57:18, user Romain G. wrote:

      No data about hypertension and diabetes mellitus in these patients, which increase risk for COVID-19 infection and severity. Should be interesting to cross the informations. Here, it is pure speculations. Has to be reviewed, but many other parameters have to be included.

    2. On 2020-03-21 17:15:33, user escabatum wrote:

      There's no mention of rates of smoking, underlying lung disease, or other major risk factors between groups. This seems like a pretty useless study.

    1. On 2020-03-24 14:01:51, user Sinai Immunol Review Project wrote:

      Main findings<br /> The authors collected data on 25 COVID-19 patients (n=11 men, n=14 women) using standard laboratory tests and flow cytometry. All patients were treated with antibiotics. Twenty-four of the 25 patients were also treated with anti-viral Umefinovir and 14 of the patients were treated with corticosteroids. 14 patients became negative for the virus after 8-14 days of treatment. The same treatment course was extended to 15-23 days for patients who were still positive for the virus at day 14. <br /> The authors found a negative association between age and resolution of infection. Patients with hypertension, diabetes, malignancy or chronic liver disease were all unable to clear the virus at day 14, though not statistically significant.<br /> Elevated procalcitonin and a trend for increased IL-6 were also found in peripheral blood prior to the treatment.<br /> A trend for lower NK cell, T cell and B cell counts in patients was also reported. B cell, CD4 and CD8 T cell counts were only increased upon treatment in patients who cleared the virus. NK cell frequencies remained unchanged after treatment in all the patients.

      Limitations of the study<br /> 73% of the patients who remained positive for SARS-CoV2 after the 1st treatment, and 43% of all patients who cleared the virus were treated with corticosteroids. Corticosteroids have strong effects on the immune compartment in blood{1}. The authors should have accounted for corticosteroid treatment when considering changes in T, NK and B cell frequencies.<br /> Assessing if IL-6 concentrations were back to baseline levels following treatment would have provided insights into the COVID-19 cytokine storm biology. Patients with higher baseline levels of IL-6 have been reported to have lower CD8 and CD4 T cell frequencies{2}. Correlating IL-6 with cell counts before and after treatment would thus have also been of interest.<br /> The report of the laboratory measures in table 2 is incomplete and should include the frequencies of patients with increased/decreased levels for each parameter.<br /> Correction is needed for the 1st paragraph of the discussion as data does not support NK cell restoration upon treatment in patients who cleared the virus. NK cells remain unchanged after the 1st treatment course and only seem to increase in 2 out of 6 donors after the 2nd treatment course in those patients.

      Relevance<br /> Previous reports suggest an association between disease severity and elevated IL-6 or pro-calcitonin concentrations in COVID-19 patients3,4. IL-6 receptor blockade is also being administered to patients enrolled in clinical trials (NCT04317092). This report thus contributes to highlight elevated concentrations of these analytes in COVID-19 patients. Mechanisms underlying the association between viral clearance and restoration of the T cell and B cell frequencies suggests viral-driven immune dysregulation, which needs to be investigated in further studies.

      References

      1. The CHI Consortium et al. Effects of Systemically Administered Hydrocortisone on the Human Immunome. Sci Rep 6, 23002 (2016).
      2. Zhao, Z. et al. Clinical and Laboratory Profiles of 75 Hospitalized Patients with Novel Coronavirus Disease 2019 in Hefei, China. http://medrxiv.org/lookup/d... (2020) doi:10.1101/2020.03.01.20029785.
      3. Chen, X. et al. Detectable serum SARS-CoV-2 viral load (RNAaemia) is closely associated with drastically elevated interleukin 6 (IL-6) level in critically ill COVID-19 patients.<br /> http://medrxiv.org/lookup/d... (2020) doi:10.1101/2020.02.29.20029520.
      4. Lippi, G. & Plebani, M. Procalcitonin in patients with severe coronavirus disease 2019 (COVID-19): A meta-analysis. Clinica Chimica Acta 505, 190–191 (2020).

      Review by Bérengère Salomé as part of a project by students, postdocs and faculty at the Immunology Institute of the Icahn school of medicine, Mount Sinai.

    1. On 2020-03-25 03:52:12, user Renee Chan wrote:

      Hi Dr Liao, Prof Zhang and Prof Zheng, May I know if you have done any fixation of the cell isolated from BAL before doing the downstream procedure using 10X genomics?

    1. On 2020-03-29 17:21:35, user Sinai Immunol Review Project wrote:

      Title: A New Predictor of Disease Severity in Patients with COVID-19 in Wuhan, China

      Keywords: disease severity – clinical data – Neutrophils/lymphocytes ratio – CRP – D-dimer

      Main findings:<br /> 377 hospitalized patients were divided into two groups: severe and non-severe pneumonia. The laboratory results of their first day of admission were retrospectively analyzed to identify predictors of disease severity.<br /> After adjusting for confounding factors from chronic comorbidities (such as high blood pressure, type 2 diabetes, coronary heart disease, and chronic obstructive pulmonary disease), the independent risk factors identified for severe pneumonia were age, the ratio of neutrophil/lymphocytes counts, CRP and D-dimer levels.<br /> To further increase the specificity and sensibility of these markers, they showed that their multiplication [(Neutrophil/lymphocyte count) * CRP * D-dimer] was a better predictor of disease severity, with higher sensitivity (95.7%) and specificity (63.3%), with a cutoff value of 2.68.

      Limitations:This study included 377 hospitalized patients. Among them, 45.6% patients tested positive for SARS-Cov-2 nucleic acid test results, and others were included in the study based on clinically diagnosis even if the molecular diagnosis was negative. Thus, additional studies are needed to verify this on a larger number of covid-19 certified patients and the cutoff value might be adjusted. Also, all the patients that did not have the clinical characteristics of severe pneumonia were included in the non-severe pneumonia group, but usually patients are also divided into moderate and mild disease.

      Also, studying different subset of lymphocytes could lead to a more specific predictor. Another study showed that the neutrophils to CD8+ T cells ratio was a strong predictor of disease severity [1]. Another more precise study showed that the percentage of helper T cells and regulatory T cells decrease but the percentage of naïve helper T cells increases in severe cases [2]. Taking these subpopulations into account might make the predictor more powerful.<br /> Other studies also noted an inverse correlation between disease severity and LDH [3] or IL6 [4] levels, but the authors here do not discuss LDH nor IL6 levels, although this could help to strengthen the predictor.

      The study is based on the results obtained on the first day of admission, studying the dynamic of the changes in patients might also be interesting to better predict disease severity.

      Relevance:This study confirms that the neutrophil to lymphocyte ratio can be a predictor of disease severity as shown by many others [2], [5], [6]. The novelty here is that they show that a combination with other markers can enhance the specificity and sensibility of the predictor, although the study could be improved by taking into account sub-populations of lymphocytes and more biological factors from patients such as LDH and IL6.

      References:<br /> 1. Longitudinal characteristics of lymphocyte responses and cytokine profiles in the peripheral blood of SARS-CoV-2 infected patients | medRxiv. https://www.medrxiv.org/con.... Accessed March 29, 2020.<br /> 2. Dysregulation of immune response in patients with COVID-19 in Wuhan, China | Clinical Infectious Diseases | Oxford Academic. https://academic-oup-com.do.... Accessed March 29, 2020.<br /> 3. Clinical findings in critical ill patients infected with SARS-Cov-2 in Guangdong Province, China: a multi-center, retrospective, observational study | medRxiv. https://www.medrxiv.org/con.... Accessed March 29, 2020.<br /> 4. Mortality of COVID-19 is Associated with Cellular Immune Function Compared to Immune Function in Chinese Han Population | medRxiv. https://www.medrxiv.org/con.... Accessed March 29, 2020.<br /> 5. Clinical Characteristics of 138 Hospitalized Patients With 2019 Novel Coronavirus-Infected Pneumonia in Wuhan, China. - PubMed - NCBI. https://www-ncbi-nlm-nih-go.... Accessed March 29, 2020.<br /> 6. Neutrophil-to-Lymphocyte Ratio Predicts Severe Illness Patients with 2019 Novel Coronavirus in the Early Stage | medRxiv. https://www.medrxiv.org/con.... Accessed March 29, 2020.

      Review written by Emma Risson as part of a project of students, postdocs and faculty at the Immunology Institute of the Icahn school of medicine, Mount Sinai.

    1. On 2020-03-31 15:52:10, user Pedro Thompson wrote:

      Is it valid to compare an Italy with a destroyed health system against a Brazil just beginning the problem? I mean, is the mortality rate a constant, in the same country during all the epidemic?

    2. On 2020-04-01 15:52:32, user Peter Hansen wrote:

      Comments.<br /> This is a very noisy signal, because data are changing very much from week to week. Current country statistics are more influence by: <br /> 1) The time where COVID-19 began to spread in each country<br /> 2) The degree of preventive measures (e.g. compare Denmark and Sweden).<br /> So all figures in the paper might look very different 2 weeks from now.

      Smaller comments.<br /> Would be nice to have a table with actual data for each country, rather than just highlighting selected countries in the figures. BTW.

      Where is France in Figure 2? <br /> Number of deaths per capita in France is relatively large (higher than Denmark). <br /> The BCG was mandatory in France for school children between 1950 and 2007, and for healthcare professionals between 1947 and 2010. (Whereas Denmark stopped BCG in the mid 1980s).

    1. On 2020-11-25 05:08:10, user ArthurConanDoyle wrote:

      Layman here, w/Covid. Wondering why you don't use sputum for greater accuracy?

      Of course, it's not as easy or ubiquitous as saliva, but maybe a sample option?<br /> The major point being accuracy is almost everything, other factors count, but...

    1. On 2020-11-27 19:55:21, user John Butler wrote:

      There seems to be either something wrong with the risk calculator or the paper text. If I choose White Female age 70-74, no comorbidities, it says 18.9% higher. I take it that means "multiply the base rate time 1.189". If I switch that to "male" it reports 119.1% higher, which would, to be consistent with the female, mean "multiply the base rate times 2.191". However, if I select Hispanic Male, 80-84 with Chronic Kidney Disease, it report 601.8%, the text reports "6 times higher". All this suggests that the White Female 70-74, as an example, is inconsistent with the form of the others.

    1. On 2020-12-10 00:06:10, user Amandeep Goyal wrote:

      What kind of scores or testing was used to diagnose polyneuropathy ?

      What tests were used if polyneuropathy was due to Diabetes or Amyloidosis ?

    1. On 2020-12-10 17:00:23, user Susan Bewley wrote:

      Thanks Russell & team. Would it be possible for you to share the following on #medRxiv too? (i) the research information leaflet you describe, (ii) the informed consent form, (iii) the statistical plan mentioned as S2. Best wishes

    1. On 2020-12-14 08:49:55, user Patrick Schmidt wrote:

      Interesting connection between network models and standard inference on contact tracing data.

      I have a paper showing that the tendency of superspreading can be estimated without contact tracing data from aggregated surveillance data alone. In line with the results here, I estimate a dispersion of 0.61 (95%-CI: [0.49, 0.77]) for Germany in spring 2020.

      https://arxiv.org/pdf/2011....

    1. On 2020-12-29 00:37:11, user Olga Matveeva wrote:

      Several recent preprints support some of this manuscript findings.<br /> 1. Authors from Sweden and China in a study entitled “Pulmonary stromal expansion and intra-alveolar coagulation are primary causes of Covid-19 death” demonstrated that “The virus was replicating in the pneumocytes and macrophages but not in bronchial epithelium, endothelial, pericytes or stromal cells. doi: https://doi.org/10.1101/202...<br /> 2. Researchers in Brasil investigated SARS-CoV-2 infection of PBMCs and found that in vitro infection of whole PBMCs from healthy donors was productive of virus progeny. They also found that “SARS-CoV-2 was frequently detected in monocytes and B lymphocytes from COVID-19 patients, and less frequently in CD4+T lymphocytes” The preprint is entitled “Infection of human lymphomononuclear cells by SARS-CoV-2”. <br /> doi: https://doi.org/10.1101/202...<br /> 3. SARS-CoV-2 infection of macrophages and some other immune cells in deceased patients was suggested in other autopsy related preprint entitled “Broad SARS-CoV-2 cell tropism and immunopathology in lung tissues from fatal COVID-19” doi: https://doi.org/10.1101/202... The study was done by US researchers from Pittsburgh. <br /> 4. Researchers in France demonstrated “that SARS-CoV-2 efficiently infects monocytes and macrophages without any cytopathic effect.” Their findings are reported in the preprint entitled “Monocytes and macrophages, targets of SARS-CoV-2: the clue for Covid-19 immunoparalysis” doi: https://doi.org/10.1101/202...

    1. On 2020-12-29 21:12:44, user Meerwind7 wrote:

      It seems these evaluations assume that all non-pharmaceutical intervention and prevention measures (e.g. masks and “lockdowns”) would be abolished once the vaccinations start. In a different approach, these measure would be upheld for a while, for example such as to limit prevalence to a certain level for some time, or to limit the number of overall deaths. One such target could be called “partial herd immunity”, which is achieved when the combination of partial vaccination and some amount of precaution measures would in combination be sufficient to assure the reproduction factor not to exceed 1 or to achieve quick shrinking of infection numbers. The combination of some vaccine plus non-pharmaceutical interventions thus would have an effect similar to full herd immunity that is achieved when recurrent infection is avoided with fully “normal” life.

      If there was only one type and scope of non-pharmaceutical intervention, an objective could be formulated as “how to minimize the duration of that intervention, when a certain maximum number of deaths (or of severe illness) shall be maintained”, taking into account vaccine doses become available slowly or other restrictions apply. A further objective should be to minimize or cap the number of vaccinated persons that are exposed to virus, because each such expose gives mutants an opportunity to break the barrier from vaccination, just like an evolutionary training.

      It would also be possible to optimize vaccine distribution and non-pharmaceutical intervention while setting a target for a particular age group. Even if an upper limit of the death count of, for example, people of 75+ years was a binding target, and some non-pharmaceutical intervention is available, it may be better to vaccinate younger people first, to reduce overall transmission more quickly and then be able to “open” the society quicker, than if 75+ obtain vaccine first.

      In further modeling, the extent (effect strength) of the non-phamaceutical measure could be gradually increased, while maintaining a goal like low nomber of overall deaths, lost lifetime or deaths of old people. I believe there could be some point where the results suddenly switch from vaccines for the old to vaccines for the young, and that beyond that point, the duration of the intervention could suddenly be reduced in a non-continuous way while upholding aggregate goals.

    1. On 2020-12-30 01:49:12, user Franko Ku wrote:

      Perhaps you should start over based on others' comments..<br /> Only one dose? Should be calcifediol?<br /> What were measured levels of Vit, D in those that received placebo?<br /> Many other studies show those with very low hormone (not a "vitamin" D have much more risk of dying.<br /> https://www.researchsquare....<br /> https://link.springer.com/a...<br /> https://www.sciencedirect.c...<br /> https://www.ncbi.nlm.nih.go...<br /> https://medium.com/microbia...

      Needed for Prevention - your paper will prevent some from supplementing as Dr Fauci said he does.:<br /> https://www.healthline.com/...

    2. On 2020-11-18 16:18:54, user LB wrote:

      Please add, in the Limitations, a comment about the fact that, "The mean time between the onset of symptoms and randomization was 10.2 days." It is quite possible that by the time the vitamin D levels were raised, the "cytokine storm" was already well underway. Thank you!

    3. On 2020-11-19 15:54:00, user Lorenzu Borsche wrote:

      Hello, this sentence:

      Subsequently, we calculated sample size assuming a 50% between-group difference in hospital length of stay (considering 7 days as a median time of stay, with an expected variability of 9 days).

      to me is not quite clear: do you mean, that you preset a desired length of stay to 7 days and the grouped the data so that both groups fit these 7 days? Thus did you mean a 50:50 distribution wrt the 7 days? If so, this cannot be done without distorting the data. If not, please explain, TIA Lorenz Borsche

    1. On 2021-01-05 22:41:19, user Troy Richlen wrote:

      An important variable that this and other studies have not been able to adequately incorporate into this analysis is the effect of comorbidities on life expectancy of COVID-19 deaths which is due to a lack of appropriate statistical information.<<<br /> This is calculating the delta of the age of death due to Covid versus the average age of death for the population not the population of people who average 2.6 comorbidities. People who are obese, have diabetes and other significant health issues also will have a negative offset from the average age of death.

    1. On 2020-09-11 14:12:07, user Kamran Kadkhoda wrote:

      Great paper but it is pivotal to highlight that correlate of protection is ONLY inferred from prospective vaccine efficacy trials instead of from convalescent cases... <br /> The inflation in MBC population shown here may very well partly be from the common CoVs

    1. On 2020-09-14 11:45:41, user Andrew Boswell ???????????? wrote:

      "We found that an increase of only 1 ????g/m3 in PM2.5 is associated with an 8% increase in the COVID-19 death rate"

      Is your COVID evidence actually reflecting a more general extreme sensitivity to PMs across underlying respiratory conditions which has been detected through the lense of the COVID research. I found this tweet (https://twitter.com/AliNour... "https://twitter.com/AliNouriPhD/status/1296554508684754945?s=20)") where Dr Ali Nouri says that the same effect has also been observed for other respiratory viruses like Influenza and SARS-1, and reflects the impacts of PMs to the underlying respiratory and cardiac system.

      Have you looked into this with your research?

      Is there other studies out there which suggests COVID is a lense to see other more underlying effects?

    1. On 2020-09-16 21:36:10, user Qunfeng Dong wrote:

      An updated version of this manuscript is now accepted for publication at JAMIA (Journal of the American Medical Informatics Association)

    1. On 2020-09-17 11:50:43, user Brian Kennedy wrote:

      Semi - comment, also a question.

      I am an economist living in Bangkok, Thailand, so this is pretty far out of my area of expertise. Thailand was the first country to get the virus outside China, but it never took off here, at this date still less than 4,000 total cases, and 60 deaths. I think there were a variety of things that led to this, but clearly early and near universal mask usage was part of it.

      Your paper looks very interesting, but I could not really follow all the math. So I will trust you on it :)

      My question is one of emphasis by public health officials in the U.S. Why has there not been a push on the issue of Viral Load? It seems to me that it is very important concept - even if using the mask doesn't always prevent you from getting infected, it will still reduce the viral load, giving your body more time to deal with the virus, significantly increasing your bodies chances of fighting it off.

      Why has this issue been (it seems to me) largely absent from the public sphere, and from the arguments public health officials use to promote mask usage? Note if it has been there and I am missing it from far away, just say so.

      Thank you for helping a laymen in your field understand :)

    1. On 2020-09-22 20:47:31, user Scandinavian Journal wrote:

      Outpatient treatment has not been the focus of almost any clinical study and this may be among the first that examine the side effects. <br /> Since the doses are very low for the hydroxychloroquine in early treatment it is no surprise that side effects is less of an issue. <br /> In fact a popular treatment is where zinc is the active component that slows virus replication and where the role of hydroxychloroquine is to act as a so called zinc ‘ionophore’ where it works to increase zinc uptake into cells. Early treatment really show so much potential and where the alarms of danger seems based on improper data for outpatient use.

      Those hospital studies that gave overdose treatments to seriously ill patients showed several side effects and was incorrectly taken to represent the risks for ALL Covid-19 usage.

    1. On 2020-09-28 09:44:58, user markd wrote:

      • very low copies number for air samples, would like to know the LOD for the detection method(s)
      • 300l/' x 10' = 3mc, 50l/' x 10' = 0.5mc - why didn't you keep analysis volume the same across sites/samplers?
      • can you report on the state/condition of ventilation in the sampled rooms?
    1. On 2020-09-30 15:25:51, user Sinai Immunol Review Project wrote:

      Very interesting paper!

      Main Findings<br /> In this preprint, Zietz and Tatonetti explore the relationship between blood type and risk of SARS-CoV-2 infection, disease severity, and mortality. Using data from the electronic health records (EHR) of 1,559 patients who presented with suspected COVID-19 (with only 682 who tested SARS-CoV-2 positive) at New York Presbyterian Hospital (NYP), they analyzed four outcome pairs. Two pairs were used to test risk for infection: i) positive for infection vs negative for infection and ii) positive for infection vs general patient population. Another pair was used to test for infection severity: iii) positive patients intubated (179) vs positive patients not intubated. The last pair was used to test risk of infection-related death: iv) deceased vs surviving patients. As a measure of exposure, they used ABO blood type (A, B, AB, or O) alone or with Rh factor. In total, they generated eight contingency tables, two for each outcome pair, one with Rh and one without. Blood type was found to be significantly associated with SARS-CoV-2 infectivity after chi-squared analysis of positively vs negatively tested patients (p=0.006 for ABO system and p=0.031 for ABO+Rh system). To identify specific blood types that may predict viral test outcomes, they specifically tested each blood type against those of a different blood type for all four outcome pairs tested in the chi-squared analysis. Fisher-exact test showed that a significantly higher proportion of patients with the blood type A tested positive for the virus, and a lower proportion of patients with O and AB tested positive (p=0.009, 0.036, 0,033 respectively). When the Rh factor was included in the analysis, Rh-positive patients with the blood type A were at a 38.2% higher risk for testing positive (p=0.004), while those with the blood type O were at a 21.0% lower risk (p=0.024). Furthermore, they performed a meta-analysis by pooling data from NYP and Zhao et al’s data from China, which substantiated the findings on blood types A and O in a random-effects analysis that compared the positively infected patients with the general populations of NYP (USA), Wuhan, and Shenzhen (China) (OR=1.164, p=0.0291, for A, and OR=0.7252, p=0.0012 for O). This analysis also revealed a new increased risk of testing positive for those with blood type B (OR=1.1101, p=0.0361). Logistic regression models confirmed that although other risk factors such as diabetes, age, and obesity correlate with certain blood types, adding the blood type as a variable to the model significantly strengthens the prediction for SARS-CoV-2 positive versus negative outcome. On the other hand, blood type was not found to be a risk factor for disease severity or mortality in any of the analyses.

      Limitations<br /> The study should be considered in the context of its limitations. Firstly, blood type-disease association was significant when comparing patients who tested positively for COVID-19 to those who tested negative, but the result was not replicated when comparing positively-tested patients to the general patient population. As the authors note, only a specific population received testing for COVID-19 while the majority of the patients in the EHR system were never tested, which could explain the discrepancy. Another related limitation is that the sample meant to be representative of the general population consisted only of people in NYP’s EHR database, which may be biased toward a specific population, and it is therefore unclear if the results would replicate in another cohort. Additionally, the finding that AB blood type is associated with lower risk of infection can only be taken as preliminary; the sample size was quite small (only 4.4% of the cohort had that blood type), and the result was not replicated in the meta-analysis with the data from China. Furthermore, the analyses that included Rh factor, the sample sizes for all Rh-negative subtypes were also small, and there were no patients with AB-negative blood who tested positive for the virus. This highlights the necessity for larger cohorts from multiple sites, but the preliminary results are promising.

      Significance<br /> This preprint on NYP patients supports the previous results by Zhao et al on Chinese Wuhan and Shenzen patients that showed that individuals with the blood type A are at a greater risk of testing positive while those with type O are at a lower risk. As the authors reported, blood type distribution is different in NYP than in China, this substantiates their results and indicates it may be replicable in other geographical and ethnic populations despite blood type heterogeneity. Furthermore, they provide a more detailed picture through a meta-analysis with both NYP and China data, and include the Rh factor in the NYP analysis. Notably, they introduce new findings: a decreased risk for testing positive for those with AB blood in the NYP-only analysis, and an increased risk in those with blood type B in the pooled analysis. With the use of convalescent serum as a disease therapeutic, the knowledge that those with A-positive and B blood types may be at an increased risk of contracting COVID-19 can help ensure that sufficient amounts of plasma donors are compatible with that blood type. Finally, the study shows that blood type is not a significant predictor of disease prognosis in those infected with SARS-CoV-2, highlighting the need for other immunological and serological predictors of disease severity and mortality.

      Credit<br /> Reviewed by Miriam Saffern as part of a project by students, postdocs and faculty at the Immunology Institute of the Icahn School of Medicine, Mount Sinai.

    1. On 2020-09-30 16:10:46, user Dan Housman wrote:

      The paper is interesting although I would have expected to see some associations between genetic SNPs/genes etc, and certain 'eating types'. There is only one mention I saw of a single gene. Is that type of analysis in the works? I'd be interested to see such an association study.

    1. On 2020-10-06 12:01:01, user Jani Ruotsalainen wrote:

      I'm teaching systematic review methods on two occasions this autumn and I'm using this article as an example to be evaluated using the AMSTAR II tool. And yes, I'm doing this even though the authors do not in fact identify their work as a systematic review. My point is to show how a meta-analysis (MA) without all the supporting structures of a thorough systematic review does not really make much sense. AMSTAR II has 16 domains that one scores Yes or No. In some cases it also allows also Partial yes and some items might not be applicable when a review does not include MA. However, in the end there is no overall sum score. Anyway, according to my assessment, the manuscript as it is now scored two instances of Yes and fourteen instances of No. In other words, it didn't do too well. The biggest cause of problems is, in my opinion, the lack of a protocol published a priori that would have established the methods to be used in sufficient detail. Now it is impossible to tell if the authors deviated from their original plans along the way and what effect this might have had on their findings. Other problems include not using a satisfactory technique to assess the risk of bias of results extracted from included studies or its possible effects on results obtained with MA. The description of included studies is minimal and the description of excluded studies is nonexistent. There are also issues with the MA itself (proficiently examined by Jesper Kivelä on Twitter: https://twitter.com/JesperK... "https://twitter.com/JesperKivela/status/1291697936842338305)") and more. I'm happy to share my full assessment with the authors.

    1. On 2020-10-06 15:42:18, user T_Rogers wrote:

      How do we know that NR was the effective factor?? Perhaps it was the other ingredients in the mixture. Also, only 71 patients with mean age of 35 and limited to no co-morbidities. IOW, exactly the profile that would be expected to recover. So, good result, but inconclusive as to efficacy of NR.

    1. On 2020-10-14 20:35:53, user BannedbyN4stickingup4Marjolein wrote:

      If "A fraction of the population may also already be intrinsically resistant to infection as a consequence of high functioning innate immunity" as the paper claim, how is it that infection rates of c. 85%, with the potential to rise further upon further exposure (for example https://www.medrxiv.org/con... "https://www.medrxiv.org/content/10.1101/2020.08.13.20173161v1)"), have been observed in homogenous populations?

      Such phenomena should surely be referenced in the authors' discussion, without which an entirely theoretical model such as that produced is perhaps an unreliable basis upon which to formulate policy prescriptions.

      There is also a recent paper commenting on cross-immunity (https://www.nature.com/arti... "https://www.nature.com/articles/s41577-020-00460-4)") the conclusions of which the authors should carefully consider.

    1. On 2020-10-16 12:16:12, user Torbjørn Wisløff wrote:

      I would seriously consider revisiting the analyses. In Figure 2c, the RR of 1.00 seems not to correspond with the somewhat diverging curves. In Figure 2a, on the other hand, the RR is 0.95, but the curves follow each other very closely.

    2. On 2020-10-18 07:14:28, user Robert Clark wrote:

      A key comparison was left out of the report, the effect of HCQ on patients specifically under invasive mechanical ventilation. This is a key category beyond just being “ventilated”. This is when the lung inflammation is so severe the patients have to be intubated, i.e., given a breathing tube inserted down the throat.

      HCQ is a highly effective anti-inflammatory. Then it would be this case where it would be most effective for hospitalized patients. Note that the study was primarily focused on these drugs anti-viral effects. HCQ is the only one of them that also has an anti-inflammatory effect. Indeed it may be the only drug among all those being considered for COVID-19 that has both characteristics.

      Note that in the RECOVERY trial it was specifically for THIS type of ventilation that the steroid dexamethasone was found to cut mortality, via its anti-inflammatory effect.

      But in Table S1 of the Supplementary file to this SOLIDARITY report it states the “ventilation” discussed includes both invasive and non-invasive types:

      Table S1

      The authors need to add to the report the effect of HCQ specifically for patients under invasive mechanical ventilation.

      BTW, the report does show the result of Remdesivir on invasive mechanical ventilation patients in Fig. 3 of the report itself, showing null effect. But this was not a useful set of data anyway because Remdesivir does not have an anti-inflammatory effect.

      The more important and relevant case of HCQ was not shown.

      Robert Clark

    1. On 2020-10-16 12:17:32, user Criticical Opinion wrote:

      Unfortunately it is not clear if there was a difference between a diagnosis of OSA vs treatment for OSA, severity or degree of OSA, or type of treatment for OSA. Without this information, the utility of these findings is questionable at best.

    1. On 2020-10-18 04:17:11, user C Jones wrote:

      My family has used the self-administered oral swab at an LA City Covid testing site each time we've tested.<br /> My son (19 yrs) tested last Friday 10/09 & received Negative result.<br /> He was out late on Saturday & I had him retest on Monday 10/12, and he received a Positive result.<br /> He tested again yesterday 10/16 and received a Negative result.<br /> His father & I both tested on 10/09, 10/14, and 10/16 - all results Negative.<br /> Very confusing. How do we proceed?

    1. On 2020-10-20 17:57:35, user Dinofelis wrote:

      It is strange to conclude that one observes statistically significant "<br /> PCR negativity in intervention and control groups were (day 7, 182 (52.1%) vs. 54 (35.7%) (P value = 0.001)"and concludes that there is no effect.

      Let us remember that statistical non-significance of rejection of H0 is not equivalent to proof of absence of effect. It simply means that the test didn't have enough power to prove anything.

      In order to prove absence of effect, one needs to reject with statistical significance the hypothesis that the effect is larger than a given threshold.

      I have seen many papers confusing "statistical absence of significance" with "proof of H0".

    2. On 2020-10-31 12:07:38, user Scandinavian Journal wrote:

      One issue not talked about much is that a normal HCQ dose as per on the package is not considered lethal, has been around for 50 years with good reliability and costs a few dollars for a package. If I caught the virus would I decide that this is useless because some study say so while others say it is effective ? I would of course put myself under this treatment.<br /> If it is useless well what damage did it do. If it was effective it may have saved my life or made the disease progression milder. For a few dollars. Easy choice.

    1. On 2020-10-21 14:08:08, user Darren Brown; HIV Physiotherap wrote:

      The EUROQoL EQ-5D-5L self-reported health related quality of life (HRQOL) measurement tool has been used for statistical purposes, however this baseline data of EQ-5D-5L scores across 5 domains (health status) and index value are not reported. This would be useful data to understand the HRQoL of the sample, with respect to population normative data (https://euroqol.org/eq-5d-i... "https://euroqol.org/eq-5d-instruments/eq-5d-5l-about/population-norms/)").

    1. On 2020-10-23 11:44:52, user Alexander Samuel wrote:

      Dear authors,

      I fully agree with your introduction, discussion, and everything is done correctly in this paper. After scientific misconducts from Gautret et al. in Didier Raoult's IHU Marseille, and its transfer to USA through J. Todaro followed by Zev Zelenko's strange comments, there is clearly a situation that went out of control about hydroxychloroquine.

      My comment on your work is that Recovery + Solidarity weight almost for 90% of the results, In a meta-analysis, I expect a significant effect of all (or most) studies, here it seems like the results are a new read of Recovery + Solidary, with comments on very low weighted unpublished or published clinical trials. Of course, authors mention that there is still no effect in the absence of Recovery, indirectly (published vs unpublished, high dose vs low dose). I think it would be important to not just make a "second read of recovery data" (exagerated statement, sorry for the way it is said). The discussion on the difference between high / low dose is what interested me most in your paper, and would be worth more comments or even analysis.

      I would suggest more theoretical molecular biology bibliography (molecular effects of HCQ might reduce the immune reaction more than affect viral cell entry), more introduction elements on in vitro data (which clearly did not favor HCQ that much) for the next effort mentioned in this paper !

      Anyways, this is a good paper since it is very honest and shows data properly, congratulations for this work.

      Best regards.

    1. On 2020-10-27 03:12:46, user Critical Dissection 2 wrote:

      Dear authors,

      First I just want to say I think that it was great you pursued such an important topic. There were a lot of good things about your article like your clear abstract that very well laid out the different parts of the paper and the main summary of each section. I also like that you laid out the limitations of your study and how they should be solved for in further investigation of this topic. However, there is still some room for improvement in this paper. I thought that the introduction could use more background to contextualize the issue and put some scope into it to explain why people should expand upon your results and see if the data is helpful in the future. I also think that the figures need more explanation in the results section, unless a highly experienced physician is reading it, it is a little hard to tell what we are supposed to be looking at and drawing from the figure that supports your hypothesis. There was also an emphasis drawn between the two patients whose ablation was done with a little more targeting of certain factors compared to patients who underwent standard ablations that was only mentioned in the discussion but is a great point that I think should be brought up earlier maybe somewhere in the results section. I think with these changes you will have a good paper.

    1. On 2020-10-27 16:42:24, user Kamran Kadkhoda wrote:

      Again no good panel of confirmed common CoVs to exclude cross-reactivity especially to an Ab like IgM with poor affinity maturation.

    1. On 2020-10-28 16:35:38, user Edsard wrote:

      I think we have a chicken and egg issue here. Your pollen theory is pretty good but also the reason why scientist always say: Correlation is not causation. Your pollen is the result of the weather (temperature and humidity, which has explained seasonality of the flu for 10 years already). Here is our paper. https://www.medrxiv.org/con...

    1. On 2020-10-28 17:53:21, user Sam Wheeler wrote:

      It it so that non-vaccinated hospital personnel are forced to wear a mask almost all the time to prevent flu, so the protection of flu vaccine is even greater than this study tells?

    2. On 2020-10-30 17:10:52, user gatwood wrote:

      I suspect there could be a strong corellation between vaccination status and following a strict adherence to all COVID anti-infection guidelines, PPE etc... Experienced and medically trained Drs and nurses more likely have been vaccinated and also are more likely to follow PPE wearing and careful anti-infection routines. Support staff (food service, assistants and claening staff) with less formal medical training and understanding of infection are probably less likely to be vacinnated and also may be less likely to carefully employ all technical anti-infection measures. Would this account for the vaccinated folks having less COVID infection?

    1. On 2020-10-29 15:18:11, user bljog wrote:

      In the results you mention "A cluster of sequences in clade 20A has an ad- ditional mutation S:A222V colored in blue" but the Figure 1 has an annotation in blue for S477N.

    1. On 2020-11-04 14:41:47, user Rodrigo Quiroga wrote:

      Are´t these results expected regardless of children´s proneness to infection and infectivity? Up until August, the time periods with open schools were also periods with low viral propagation in the UK.

      Wouldn´t the interesting period to observe with such an analysis be precisely August-November, with open schools and increasing case numbers?

    1. On 2020-11-05 12:26:14, user Sandra Chydé wrote:

      Dear authors,

      You are citing one of my papers (reference 15) in a misleading way here : " There are concerns that the use of e-cigarettes in never-smokers may increase the probability that they will try combustible tobacco cigarettes and go on to become regular smokers, particularly among youth and young adults [13-15].".

      First, our methodology focused ONLY on ever-smokers aged 17 having experimented with e-cigarette.

      Second, we found that in this population of 17 yo, among ever-smokers, those who declared having ever used e-cigarettes were LESS likely than those who did not to transition to daily smoking at 17: RR =0.62 95 %CI [0.60 – 0.64].

      This analysis is strongly robust and relies on a sample of 21,401 respondents.

      Best,

      Sandra Chyderiotis, Pharm.D, MPH

    1. On 2020-11-07 10:32:09, user Ivan Ivanov wrote:

      They will never share the primer sequences as the test is being commercialized already. The idea is interesting however I cannot imagine the price for 500ul LAMP reaction. Also what's the point to put DNase and carrier DNA together in the mastermix.

    1. On 2020-11-14 02:00:10, user Melimelo wrote:

      Hi, very interesting article. Which software did you use for initial qualitative coding and subsequent text mining? are there particular commands or functions in a given software package that were useful? are you sharing your code anywhere (eg github?)

    1. On 2020-11-15 21:48:01, user Ands Hofs wrote:

      We in germany do re-testing of positives on a regular basis, and the result is that false-positive diagnostic findings that are actually filed to the patient are in the range of 0,001 %. Even if testing activity of healthy subject was high up to September, the number of people that had a wrong test result is something like a handful a week and totally acceptable in the face of the alternative. Especially since one does a second test some days later.

      But right now we have positive testing of 25% of samples in Frankfurt (Main),e.g., just mentioning this to get the perspective right, water is rising above neck to the lips...

      A few people (like 1-5%) mentally infect 30% insecure anxious people here, damaging our wakefulness to keep our viruses for ourselves, prohibiting smart distancing to be practice in private contexts, behind closed doors in companies and among friends and neighbors all the same, and this is making the 2nd lockdown necessary.

      And causing thousands of deaths not necessary when they would obey the democratic decision: we do not want to do triage. We want to keep the numbers low. We want to keep our viruses to ourselves. We do not want to have unnecessary lockdowns burning away existences, jobs, money... But what choices do we have?

      Since we wasted the summer where we had the chance to get incidence real low.

      Now the only thing that can save our neck is a (pre-) test that is really free for everyone, and MIT has one: https://digitalreality.ieee...

      Every one writing about false positives should weigh his words thoroughly.<br /> Not the rate of one single test method is what people want to know. <br /> They want to have approved quality testing and numbers for "their" lab.

      These numbers are there in every German lab, since they are obliged to certify every test they offer and to take part in Ring Tests where labs and their certified tests are tested. This is done by sending a lab unknown but specially prepared samples that each lab has to let run through the lab on a regular basis. This also is done to get quantitative tests to comparable levels between labs.

      Comparable Levels for Covid-19-Infected patients:<br /> It is a pity that we do not let some piece of human DNA normally found from throat swabs run together with the Sars-CoV2 Test on a regular basis, resulting in viral units per human DNA count, because this would enable us to estimate the viral load at the place where the sample was taken. It would outrun many variabilities that occur when taking samples that affect the amount of material gained in the sampling process, and one could monitor viral loads across the time line for each infection with high therapeutic value. <br /> I'm so curious if someone has done this with the gargling method for probing, since here the local variability in infection density is not playing any role any more, as is the case for the question how infectious one could be in a certain state of the infection.

      Boston children hospital has done this in their study on viral loads in children, where for the first time it was found that children, regardless if having symptoms or not, have viral loads like heavily ill adults. <br /> Since their lungs are smaller proportional to their age and development, of course the net amount of aerosols produced by a small child e.g. up to 8 or 10 years is smaller ( - but proportional to the loudness of their voices ;)) <br /> Still - starting with 11 or 12 years, it starts to reach adult levels, meaning we must do DIY patchwork air ventilation with heat recovery mechanisms out of vapor barrier film and 2 vents in schools or let the pupils sit in the cold of fresh air or 8hrs / day under some masks that muffle sound (many innovative ideas for DIY masks are asked here for).<br /> I like the nordic approach either to do home schooling or do classes under the trees for the younger ones, leaving a lot of space in the school for elderly pupils, especially in classes wanting to have their final exams ;)

      Andi

    1. On 2020-11-20 16:49:15, user Jean Kaweskars wrote:

      Hello,

      Your figures are not consistent.<br /> If you have 11% IFR for 80-90-year-old subjects who represent 6,3% of France population (> 80 years old), it does translate into a minimum of 0,69% overall IFR. If you apply your IFR rates by age, you would actually get an overall 0,91% IFR at minimum.

      Regards

    1. On 2020-11-25 15:49:17, user James Wyatt wrote:

      In the discussion of weaknesses, you failed to mention that you eliminated approximately 1/3 of the cases for lack of complete data. Did you study these cases to see if their exclusion could possibly have biased your results? What was the crude death rate among these cases?

      In Table 1, the disparity between mortality rates per 100k population is solely a function of the difference in incidence rates. That's significant, for sure, but the fact that CFR is the same for whites and blacks is also significant. In its rawest state, that indicates that, once someone is sick, race seems not to matter in the outcome. Doesn't that bear some discussion?

      How did you determine cause of death? Covid-19 is rarely the sole cause when death certificates are completed competently and there is some judgment required to clearly identify a covid death. As follow-ups, were there non-Covid-19 deaths in your data? How were they identified? If there were none, can you justify that?

      In mortality studies, the key question often is: How did you calculate the exposure? That is, how did you determine the denominators for your ratios? You reference some models, but you give no details.

      The paper needs a lot more work, don't you agree?

    1. On 2020-11-25 19:54:26, user Puya Dehgani-Mobaraki wrote:

      Interesting data, which are also seen on our study were the persistency of the antibodies were detected and persisted during 8 months.

      https://www.medrxiv.org/con...

      I do would like to have more informations in regards of the patients selection for the 8 months analysis.<br /> Our cohort was based in patients resulted positive for Sara-Cov-2 early days of March, Italy. As far as my knowledge, very few cases were reported in Australia at that time.<br /> Puya Dehgani-Mobaraki