On 15/01/2021 08:30, Brian Gaff (Sofa) wrote:
I don't think that this is true. The vagaries of dose and the variation in
the virus makes this kind of testing very difficult to do.
Brian
Yesterday's episode of "More or Less" (BBC Radio 4, now on iPlayer)
explained how the effectiveness figure is arrived at.
If you use the same methodology there's little difference between the
three approved vaccines, and one dose *is* highly effective.
https://www.bbc.co.uk/programmes/m000r4t9
--
Reentrant