227 Matching Annotations
  1. Apr 2022
    1. Kai Kupferschmidt. (2021, December 1). @DirkBrockmann That percentage number tells you “how likely an infected passenger from South Africa or Botswana travels to each country and exits the airport there”. So: “0.9% in Germany means that out of 1000 such individuals, 9 are expected to have Germany as their final destination.” [Tweet]. @kakape. https://twitter.com/kakape/status/1466107478807097354

    1. 🇺🇦 Meaghan Kall. (2022, January 27). NEW: 🏴󠁧󠁢󠁥󠁮󠁧󠁿 Vaccine effectiveness (symptomatic infection) data for BA.2 {Omicron’s more infectious sister} NO difference in VE between Omicron (BA.1) and BA.2 Possibly even higher VE for BA.2 but estimates overlap See full thread 🧵 from @freja_kirsebom https://t.co/bJ7uCn2cGV [Tweet]. @kallmemeg. https://twitter.com/kallmemeg/status/1486821549458001927

    1. Dr Dominic Pimenta [@DrDomPimenta]. (2021, December 15). An illustration of communicating risk with “less severe” variants: [Thread] Assume Omicron is 4x more transmissible than Delta. [1] Assume Omicron leads to 1/3 less admissions than Delta. [Figure below] Assume 1 in 100 cases of Delta are admitted to hospital. Https://t.co/XtnVwoOrUo [Tweet]. Twitter. https://twitter.com/DrDomPimenta/status/1471094002808242177

    1. Pérez-Then, E., Lucas, C., Monteiro, V. S., Miric, M., Brache, V., Cochon, L., Vogels, C. B. F., Cruz, E. D. la, Jorge, A., Santos, M. D. los, Leon, P., Breban, M. I., Billig, K., Yildirim, I., Pearson, C., Downing, R., Gagnon, E., Muyombwe, A., Razeq, J., … Iwasaki, A. (2021). Immunogenicity of heterologous BNT162b2 booster in fully vaccinated individuals with CoronaVac against SARS-CoV-2 variants Delta and Omicron: The Dominican Republic Experience (p. 2021.12.27.21268459). medRxiv. https://doi.org/10.1101/2021.12.27.21268459

    1. Abu-Raddad, L. J., Chemaitelly, H., Ayoub, H. H., AlMukdad, S., Tang, P., Hasan, M. R., Coyle, P., Yassine, H. M., Al-Khatib, H. A., Smatti, M. K., Al-Kanaani, Z., Al-Kuwari, E., Jeremijenko, A., Kaleeckal, A. H., Latif, A. N., Shaik, R. M., Abdul-Rahim, H. F., Nasrallah, G. K., Al-Kuwari, M. G., … Bertollini, R. (2022). Effectiveness of BNT162b2 and mRNA-1273 COVID-19 boosters against SARS-CoV-2 Omicron (B.1.1.529) infection in Qatar (p. 2022.01.18.22269452). medRxiv. https://doi.org/10.1101/2022.01.18.22269452

  2. Mar 2022
    1. BA.2 sub-lineage has even higher propensity to spread among people and has the ability to infect people who have been fully vaccinated and/or previously infected by escaping from neutralising antibodies induced by vaccination or infection.

      Omicron BA2 infects more in vaccinated

  3. Feb 2022
    1. Marc Stegger. (2022, February 22). New preprint on #COVID19 is out: “Occurrence and significance of Omicron BA.1 infection followed by BA.2 reinfection”. Using the national surveillance system in Denmark, we show that reinfections with #SARSCoV2 VOC #Omicron BA.2 can occur after recent BA.1 infection #SSI_dk https://t.co/Cm0n8vga4P [Tweet]. @MarcStegger. https://twitter.com/MarcStegger/status/1496099303143653379

    1. Stegger, M., Edslev, S. M., Sieber, R. N., Ingham, A. C., Ng, K. L., Tang, M.-H. E., Alexandersen, S., Fonager, J., Legarth, R., Utko, M., Wilkowski, B., Gunalan, V., Bennedbæk, M., Byberg-Grauholm, J., Møller, C. H., Christiansen, L. E., Svarrer, C. W., Ellegaard, K., Baig, S., … Rasmussen, M. (2022). Occurrence and significance of Omicron BA.1 infection followed by BA.2 reinfection (p. 2022.02.19.22271112). medRxiv. https://doi.org/10.1101/2022.02.19.22271112

    1. Tseng, H. F., Ackerson, B. K., Luo, Y., Sy, L. S., Talarico, C. A., Tian, Y., Bruxvoort, K. J., Tubert, J. E., Florea, A., Ku, J. H., Lee, G. S., Choi, S. K., Takhar, H. S., Aragones, M., & Qian, L. (2022). Effectiveness of mRNA-1273 against SARS-CoV-2 Omicron and Delta variants. Nature Medicine, 1–1. https://doi.org/10.1038/s41591-022-01753-y

    1. Cornelius Roemer. (2022, February 12). Fantastic work by @UKHSA comparing serial intervals of BA.1, BA.2 and Delta as published in the most recent technical briefing. BA.2 seems to have even shorter serial interval than BA.1 This could help explain different relative growth rates of BA.2 vs BA.1 in different countries https://t.co/Gch94Ew8CX [Tweet]. @CorneliusRoemer. https://twitter.com/CorneliusRoemer/status/1492434232664375304

    1. Altarawneh, H. N., Chemaitelly, H., Hasan, M. R., Ayoub, H. H., Qassim, S., AlMukdad, S., Coyle, P., Yassine, H. M., Al-Khatib, H. A., Benslimane, F. M., Al-Kanaani, Z., Al-Kuwari, E., Jeremijenko, A., Kaleeckal, A. H., Latif, A. N., Shaik, R. M., Abdul-Rahim, H. F., Nasrallah, G. K., Al-Kuwari, M. G., … Abu-Raddad, L. J. (2022). Protection against the Omicron Variant from Previous SARS-CoV-2 Infection. New England Journal of Medicine, 0(0), null. https://doi.org/10.1056/NEJMc2200133

    1. Ali Ellebedy. (2021, December 30). We need those who are adept at #SciComm to explain that “Omicron” is sufficiently different from the original strain that was used to make the vaccine. Therefore, the definition of “fully vaccinated” will have to be updated, but that does not mean that the vaccines have failed. [Tweet]. @TheBcellArtist. https://twitter.com/TheBcellArtist/status/1476649138691444740

    1. Ulrich Elling. (2022, January 12). While #Omicron BA.1 leads the race, the little sister BA.2 is catching up in numbers. They are rather different with likely functional implications. BA.2 might be more immune evasive in RBD, less in NTD. And due to reduced mutation load in NTD maybe different fusion properties? Https://t.co/kEACjzQDs3 [Tweet]. @EllingUlrich. https://twitter.com/EllingUlrich/status/1481214901997682692

    1. Mike Honey 💉💉💉. (2022, January 27). Here’s the latest variant picture for Australia. BA.1 (Omicron) is still very dominant. The new sub-lineage BA.1.1 (with the Spike R346K mutation) is significant, but not growing rapidly. Https://t.co/LsOCkUQhai [Tweet]. @Mike_Honey_. https://twitter.com/Mike_Honey_/status/1486654152939765766

    1. Jonathan Li on Twitter: “There’s a lineage of Omicron that’s gained the R346K mutation (BA.1.1). This one could spell some trouble for the AZ mAb (tixagevimab/cilgavimab, Evusheld) that’s being used for pre-exposure prophylaxis. If you want to learn about tix/cil vs Omicron, read on 1/7” / Twitter. (n.d.). Retrieved February 6, 2022, from https://twitter.com/DrJLi/status/1487479972293853188

    1. Prof. Christina Pagel. (2022, January 31). Update on growth of Omicron subvariant BA.2 in England from Wellcome Sanger data. Growing in all regions. The main Omicron variant we’ve had so far is BA.1. There is then its child BA.1.1 with an extra mutation and its brother BA.2 which is pretty different to BA.1. 1/2 https://t.co/iVxrf01P4o [Tweet]. @chrischirp. https://twitter.com/chrischirp/status/1488127760291799041

  4. Jan 2022
    1. Tom Wenseleers. (2022, January 30). Seems that the second Omicron subvariant BA.2 may soon be about to cause cases to start rising again in South Africa... Or at least to stop the decline in new infections. Shows how fast immunity wanes & evolution can catch up. Https://t.co/3y4xqPgZ0L [Tweet]. @TWenseleers. https://twitter.com/TWenseleers/status/1487919837670219781

    1. Pajon, R., Doria-Rose, N. A., Shen, X., Schmidt, S. D., O’Dell, S., McDanal, C., Feng, W., Tong, J., Eaton, A., Maglinao, M., Tang, H., Manning, K. E., Edara, V.-V., Lai, L., Ellis, M., Moore, K. M., Floyd, K., Foster, S. L., Posavad, C. M., … Montefiori, D. C. (2022). SARS-CoV-2 Omicron Variant Neutralization after mRNA-1273 Booster Vaccination. New England Journal of Medicine, 0(0), null. https://doi.org/10.1056/NEJMc2119912

    1. Elliott, P., Eales, O., Bodinier, B., Tang, D., Wang, H., Jonnerby, J., Haw, D., Elliott, J., Whitaker, M., Walters, C., Atchison, C., Diggle, P., Page, A., Trotter, A., Ashby, D., Barclay, W., Taylor, G., Ward, H., Darzi, A., … Donnelly, C. (2022). Post-peak dynamics of a national Omicron SARS-CoV-2 epidemic during January 2022 [Working Paper]. http://spiral.imperial.ac.uk/handle/10044/1/93887

    1. Tom Peacock. (2022, January 3). Lots of chat about B.1.640.2 in the last few days—Just a few points to keep in mind: - B.1.640.2 actually predates Omicron—In all that time there are exactly... 20 sequences (compared to the >120k Omis in less time) Def not one worth worrying about too much at the mo... [Tweet]. @PeacockFlu. https://twitter.com/PeacockFlu/status/1478118173903839237

    1. Helen Branswell. (2022, January 11). 1. #Omicron’s takeover was stunningly rapid and is now nearly complete, at least in the U.S. The latest “Nowcast” from @CDCgov (which uses recent data to model what’s happen now) suggests most of what is circulating here now is omicron. Https://t.co/6w3e8Ut5NW [Tweet]. @HelenBranswell. https://twitter.com/HelenBranswell/status/1480970453313277954