David Juurlink Profile picture
Internal Medicine, Clinical Pharmacology/Toxicology and drug safety research @Sunnybrook and @UofTMedicine. Inexplicably fortunate husband.

Jun 23, 2021, 7 tweets

ACIP's slides on mRNA vaccines and myocarditis are now available cdc.gov/vaccines/acip/…

Hard to argue this isn't causal

The signal by age and dose is not ambiguous

Risk clearly seems highest among young males

Important to note: anyone can report anything to VAERS

When they dig into 29 *confirmed* cases:
- majority were hospitalized
- 2 required ICU care
- all were eventually discharged

The rates here are a bit misleading because teens are lumped in with twenty- and thirtysomethings. (To be fair, they have to do this because counts are so low.)

It's fair to call vaccine-associated myocarditis rare or very rare. And it's reassuring that most of those who develop it do well.

Still waiting to see more detail from Israel sciencemag.org/news/2021/06/i…

I am a big proponent of vaccination, but I think it's fair to ask a question:

What is the incremental benefit of a second dose in young males (say, under 25), especially as more and more older people are fully vaccinated?

/ end

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