Data from US CDC shows pericarditis or myocarditis rates higher than expected in young men after 2nd dose of Pfizer and Moderna vaccines

Over 50% of reported cases to U.S. Vaccine Adverse Event Reporting System were for ages 12-24years, who accounted for <9% of doses administered and 283 cases were observed between ages 16-21 which was expected to be between 10-102.

Reuters Health