Pfizer just announced that 0 out of 20,000 in the placebo group died of covid since the trial began 9 months ago
In that time period, 400k Americans died of covid or ~.1%.
We'd expect 20 covid deaths if the placebo group were chosen at random.
The chance of 0? 1 in 500 million
— Teddy Petrou (@TedPetrou) April 2, 2021