Quote:
Originally Posted by NotDonger
I'm not sure about the "should have had 162 cases and it had eight" part. The Pfizer numbers just show that of the 43,000 total participants, both vaccinated and placebo, 170 confirmed cases were noted. 162 of the cases were among the placebo group and 8 were among the vaccinated group.
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If the vaccine was useless, you'd expect 162 cases in that group, right? And if the vaccine was 100 percent effective, you'd expect zero. What would you expect if the vaccine was 50 percent effective? 81.