What causes myocarditis in boys and young men after COVID vaccination? Study offers answers.
USA Today (May 5th) – A new study may partly explain what’s driving rare cases of heart inflammation, called myocarditis, in some young people who have gotten repeat doses of the mRNA COVID-19 vaccines.
The risk of developing vaccine-related myocarditis is extremely low, affecting fewer than 20 people per 1,000,000 vaccinations, according to the National Institutes of Health. Researchers at the Yale School of Medicine studied 23 participants who developed the heart condition after their second dose of COVID-19 vaccine to learn how it developed in these few cases. Authors say the study’s small sample size is a testament to the condition’s rarity.