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Jay Varma. (2021, December 16). Um, we’ve never seen this before in #NYC. Test positivity doubling in three days 12/9—3.9% 12/10—4.2% 12/11—6.4% 12/12—7.8% Note: Test % is only for PCR & NYC does more per capita daily than most places ~67K PCR/day + 19K [reported] antigen over past few days (1/2) https://t.co/PhxsZq55jn [Tweet]. @DrJayVarma. https://twitter.com/DrJayVarma/status/1471485885447389186

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Theo Sanderson. (2021, December 8). SGTF Regional data to Dec 6 from https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/1039470/Omicron_SGTF_case_update.pdf (Last data point would be expected to be incomplete based on the dates and so to slightly understate growth. And also will already have moved substantially from the midpoint of that last week on 3rd Dec.) https://t.co/1L6tM0sXIZ [Tweet]. @theosanderson. https://twitter.com/theosanderson/status/1468648673668128775

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Youyang Gu. (2021, June 30). South Dakota has a vaccination rate of 50% (1+ dose). Maine is at 66%. So is Maine better protected? Not quite. If you factor in immunity from natural infection, SD has a total population immunity of ~70%, while ME is at ~62%. I created a calculator: Https://t.co/j4tMI2zN2K [Tweet]. @youyanggu. https://twitter.com/youyanggu/status/1410264061900726283

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