Day 695: More Myocarditis

Vinay Prasad rips the FDA a new one in his latest post about a follow-up to the Nature Medicine paper about myocarditis:

1. It is now clear for men <40, dose 2 and dose 3 of Pfizer have more myocarditis than sars-cov-2 infection, and this is true for dose 1 and dose 2 of Moderna.
2. Pfizer boosters (Dose 3) have more myocarditis for men <40 than infection.
3. Myocarditis post infection is more common as you get older, in contrast with myocarditis post vaccination, which is more common as you are younger (reverse gradients)

But the truth is STILL WORSE than these data.

1. If the authors fixed the denominator for viral infection (i.e. used sero-prevalance), it would look even worse
2. If the authors separate men 16-24 from 12-15 and 25-40, it would likely look worst in 16-24 age group.

But regardless, these findings already clearly dispel the true misinformation online: Yes, sorry to break it to you, vaccines can have risks of myocarditis EXCEEDING risks of myocarditis from infection.

On a lighter note, some Canadian humor:

Are you sure the train is going toMontreal ?

— NorthernObservr (@NorthernObservr) December 24, 2021