Vaccines and myocarditis/pericarditis: a new systematic review of >400 million doses of various vaccines, from 1947 -> 2021
—Overall incidence: Covid (18/M) vs non-Covid (56/M)
—Smallpox highest; Covid similar to flu shots
—mRNA risk: male, < age 30, 2nd💉
thelancet.com/journals/lanre…ni