Large Observational study shows Pfizer Covid vaccine is mostly safe but is associated with increased risk of myocarditis, adenopathy, appendicitis, and herpes zoster.

Safety of the BNT162b2 mRNA Covid-19 Vaccine in a Nationwide Setting – New England Journal of Medicine

Commentaries on Twitter

For those who still believe getting Covid-19 is less risky than taking the vaccine, take a look at this chart from an observational study of nearly 1 million people in Israel. The risk of these conditions is much higher in those infected than vaccinated.https://t.co/Io08oFYRqW pic.twitter.com/57hOaoT5wQ

— Benjy Renton (@bhrenton) August 25, 2021

(thread from the author – click for more)

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Vaccine safety: We compared excess adverse events after #COVID19 vaccination (Pfizer-BioNTech) and after documented #SARSCoV2 infection.https://t.co/PNyCTqkq0t

Take-home message: Low excess risk of adverse events after vaccination, higher after infection.

Some thoughts? pic.twitter.com/pbpJwCRd3D

— Miguel Hernán (@_MiguelHernan) August 25, 2021