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Justin Baragona on Twitter: “There seems to be a concerted effort today by Fox’s daytime news shows to promote the vaccines to its audience. Dr. Marc Siegel says ‘the Delta variant needs to be a wake-up call to get vaccinated.’ Anchor John Roberts then directs viewers to the government vaccine website. Https://t.co/T5b21nXCfe” / Twitter. (n.d.). Retrieved August 4, 2021, from https://twitter.com/justinbaragona/status/1417178420950220811

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Marc Lipsitch. (2021, July 26). Https://apps.who.int/iris/rest/bitstreams/1358525/retrieve just out from @WHO Guidance on conducting vaccine effectiveness evaluations in the setting of new SARS-CoV-2 variants INTERIM GUIDANCE 22 JULY 2021 [Tweet]. @mlipsitch. https://twitter.com/mlipsitch/status/1419613491745464322

John Burn-Murdoch. (2021, May 27). NEW: B.1617.2 is fuelling a third wave in the UK, with not only cases but also hospital admissions rising. Vaccines will make this wave different to those that have come before, but it remains a concern, and one that other countries will soon face. Thread on everything we know: Https://t.co/4825qOqgrl [Tweet]. @jburnmurdoch. https://twitter.com/jburnmurdoch/status/1397995388267810818

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Carl T. Bergstrom. (2021, May 27). An update on the B.1.617.2 lineage. I’m concerned. Not because of reduced vaccine efficacy, but simply because a further increase in transmissibility above B.1.1.7 would be quite bad news for countries where vaccination is low and for hopes of near-elimination everywhere. [Tweet]. @CT_Bergstrom. https://twitter.com/CT_Bergstrom/status/1398029743954432005

Meaghan Kall 🏳️‍🌈 on Twitter: “The updated cumulative growth curves showing continued exponential growth of B.1.617.2.. Https://t.co/3fmEwU7cP3” / Twitter. (n.d.). Retrieved July 2, 2021, from https://twitter.com/kallmemeg/status/1397981951907217411

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Juliet Pulliam, PhD. (2021, June 28). My take (3/4): The last 15 months have been brutal for those of us in SA, as in most of the world. The next few months will continue to try us. Vaccination brings our best hope of making COVID manageable. [Tweet]. @SACEMAdirector. https://twitter.com/SACEMAdirector/status/1409392605901864962

Elisabeth Mahase. (2021, July 26). At least 6 weeks between Pfizer vaccine doses = higher neutralising antibody levels (than a 3-4 wk interval) For those with the delta variant, antibody levels were 2.3-fold higher with the longer interval Preprint from @pitchstudy @bmjlatest https://t.co/E3yOTqNgpa [Tweet]. @emahase. https://twitter.com/emahase_/status/1419604658344112130

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Alan McNally 💙. (2021, February 5). Our latest lab data for B.1.1.7 prevalence in Pillar 2 samples, as determined by SGTF. Clearly now plateauing at 80-90%. Which to me suggests there are other lineages as transmissible as B.1.1.7......... Https://t.co/toA0GyVsZz [Tweet]. @alanmcn1. https://twitter.com/alanmcn1/status/1357701944027004929

World Health Organization (WHO). (2021, May 31). Today WHO has announced a new naming system for key #COVID19 variants. The labels are based on the Greek alphabet (i.e. Alpha, Beta, Gamma, etc), making them simple, easy to say and remember. 👉 https://t.co/aYCZfspZyb https://t.co/Gxt14fwVqF [Tweet]. @WHO. https://twitter.com/WHO/status/1399432092333883393

ReconfigBehSci. (2021, April 8). RT @EricTopol: The variants of concern/interest fall into a spectrum of immune evasiveness, w/ B.1.351 being most; B.1.1.7, B.1.429 least.… [Tweet]. @SciBeh. https://twitter.com/SciBeh/status/1397697142769152001

Seth Trueger. (2021, May 3). Https://t.co/mKCwcjQfe3 [Tweet]. @MDaware. https://twitter.com/MDaware/status/1389244959757373441

Nick Holliman. (2021, May 30). @anthonybmasters @d_spiegel A quick visual summary of data on this week’s article by @anthonybmasters & @d_spiegel The outlook is uncertain, although we have survived a variant once already (B.1.1.7). The data on the effect of variants is analysed as fast as it (reliably) arrives. Https://t.co/vOKmCxYMGT https://t.co/3ZeJJTdRs3 [Tweet]. @binocularity. https://twitter.com/binocularity/status/1398957348492918784

Eric Topol. (2021, June 9). Here’s the updated, comprehensive list of #SARSCoV2 variants that are resistant to vaccines https://t.co/JnOz3T7L28 [Tweet]. @EricTopol. https://twitter.com/EricTopol/status/1402752521970458628

ReconfigBehSci on Twitter: ‘RT @EricTopol: Summed up well by @MollyJongFast, especially for delta, the most challenging one so far https://t.co/cSGekr2q2S’ / Twitter. (n.d.). Retrieved 11 June 2021, from https://twitter.com/SciBeh/status/1403057875254054914

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DbRaevn on Twitter: “🗺Australian Covid outbreaks since May 2021—9 outbreaks (1 USA, 1 alpha, 1 kappa, 6 delta) https://t.co/njzgd8oM2T” / Twitter. (n.d.). Retrieved July 19, 2021, from https://twitter.com/dbRaevn/status/1414911457217507329

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David Fisman. (2021, July 8). Fascinating new preprint on delta vs older variants in well-investigated outbreaks in China. Viral load for delta is 3 log higher, and latent period is shorter too (estimate is 4 days vs 6 days). This may explain much higher R estimates which may be due to elevated viral load [Tweet]. @DFisman. https://twitter.com/DFisman/status/1413126886570536963

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Adam Kucharski on Twitter: “Useful data 👇– quick look suggests odds ratio for detection of B.1.617.2 relative to non-B.1.617.2 in vaccinated group compared to controls is 2.7 (95% CI: 0.7-10) after one dose and 1.2 (0.4-3.6) after two...” / Twitter. (n.d.). Retrieved July 2, 2021, from https://twitter.com/AdamJKucharski/status/1400443351908892675?s=20

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A Marm Kilpatrick on Twitter: “How effective are vaccines vs severe & all disease, death, infection, & transmission? Very nice collection of studies assessing different aspects of vaccine protection by Julia Shapiro (on twitter?) @nataliexdean @betzhallo @ilongini & 2 others. Thread https://t.co/mhe0DufVtH” / Twitter. (n.d.). Retrieved June 28, 2021, from https://twitter.com/DiseaseEcology/status/1395848357461954563