Another monster Covid vaccine update, with sections on major turning points you might have missed, "real world evidence", immunosuppressed people, and trials in children and teenagers. At Absolutely Maybe – New Vaccine Hopes, Adverse Reactions, & a Developer Clashing with Regulators: A Month of Highs and Lows.

My April talk at the Virtually Cochrane 2021 meeting is now a blog post – Systematic Evidence and the Covid-19 Stress Test: Pass or Fail? With my thanks to the organizers and participants, who gave me a lot to think about!

And another look at a systematic review based controversy: Peering Through the Smoke at a Duel Over Covid's Infection Fatality Rate




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