Interesting titbit from the Pfizer study - the attack rate in the general population and the people who had already had COVID-19 was similar. 1.3% of people who had COVID-19 antibodies BEFORE vaccination got infectedpic.twitter.com/c4rJ8TGQn5
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And 1 person who was PCR +ve >28 days later. I think your earlier point becomes even more important - if these PCR +ves were mostly days after the first shot, you'd assume they were actually infected before the trial I think?
This is indeed odd. According to the protocol, PCR was also done at the first vaccination visit - could these all have been false negatives? The striking accumulation of (presumed) reinfections at the beginning of the trial suggests they aren't real reinfections, it seems.
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