Quoted from chad:Federal health officials have verified 226 cases of myocarditis or pericarditis in people ages 30 and younger who have received an mRNA COVID-19 vaccine and are investigating about 250 more reports.
https://www.aappublications.org/news/2021/06/10/covid-vaccine-myocarditis-rates-061021
I'm glad those are being reported and they are checking it out. But do you know what poses a much higher risk of myocarditis and pericarditis than the vaccines? Actually contracting Covid-19.
https://www.hcplive.com/view/science-understand-myocarditis-covid-19