https://www.frontiersin.org/articles...22.951314/full
"This is the first systematic review and meta-analysis and the largest study to date of acute myocarditis after SARS-CoV-2 vaccination or infection that estimate the risk ratio of myocarditis due to SARS-CoV-2 infection vs. COVID-19 vaccination. We found that the risk of myocarditis increased by a factor of 2 and 15 after vaccination and infection, respectively. This translates into more than a 7-fold higher risk in the infection group compared to the vaccination group. Among the persons with myocarditis in the vaccinated group, 61% (IQR: 39–87%) were men. Younger populations demonstrated an increased risk of myocarditis after receiving the COVID-19 vaccination. Nevertheless, the risk of hospitalization and death was low. This review is important as there is much hesitancy in the general population of receiving the COVID-19 vaccine given its serious adverse effects."