Case in point: fully vaccinated boys without medical comorbidities in the US between ages 12 and 17 from January to June 2021 got myocarditis at 370–610% (ages 12–15) / 210–350% (12–17) higher rates than their risk of COVID-19 hospitalization.

(Edit: forgot the source :P) https://www.medrxiv.org/content/10.1101/2021.08.30.21262866v...