Part of a Q&A published by the Yale School of Medicine May 16, 2023. it explains that vaccination reduces the risk of myocarditis.
"Q&A: What Causes Rare Instances of Myocarditis After mRNA COVID-19 Vaccines?
"Myocarditis is a rare side effect of mRNA COVID-19 vaccines, which have been used with great success as protection against the SARS CoV-2 virus and its variants. Generally, the condition is highly treatable, but it has caused concern in some quarters about the vaccines’ safety.
"We spoke with Carrie Lucas, PhD, associate professor of immunobiology at Yale School of Medicine, and Akiko Iwasaki, PhD, Sterling Professor of Immunobiology, about their recent study which uncovers clues to why this complication can occur.
"What is myocarditis?
"Lucas: Myocarditis is inflammation of the heart muscle. It occurs most commonly after an infection but can also be triggered by other things. There are several forms of myocarditis, but generally, what they all have in common is the inflamed heart muscle.
"What is the likelihood of developing myocarditis post-vaccination, and who is most at risk?
"Iwasaki: Myocarditis risk depends on the age and sex of the vaccine recipient. It is most common in younger males—adolescents or young adults. The highest risk group is males between 12 and 17 years of age. And in that highest risk group, the myocarditis risk after the second dose, which is the highest, is 35.9 per 100,000 people. In comparison, the risk post-infection in that same group is 64.9 per 100,000."
