There’s been some confusion over the efficacy of the AstraZeneca vaccine, because of a dosing mistake in one of the early trials. But what’s clear is that its efficacy with a standard, two-dose schedule is 62%. In comparison, the efficacy of Pfizer/BioNTech’s vaccine is 95%, while interim results suggest the Novavax vaccine has an efficacy of 89%. These differences matter, because if vaccine […]

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Source: Weekly Blitz :: Writings