It is an extremely rare side effect, and only an exceedingly small number of people will experience it after vaccination. Importantly, for the young people who do, most cases are mild, and individuals recover often on their own or with minimal treatment. In addition, we know that myocarditis and pericarditis are much more common if you get COVID-19, and the risks to the heart from COVID-19 infection can be more severe. Symptoms of myocarditis that should prompt seeking medical evaluation include new symptoms of chest pain, shortness of breath, or feeling of your heart having a fast, fluttering, or pounding heartbeat that occurs within a week after COVID-19 vaccination. Your provider can help determine the cause of these symptoms and whether any treatment is needed.
The COVID-19 vaccine is recommended by the CDC and national physician organizations. We strongly encourage everyone age 12 and older who are eligible to receive the vaccine to get vaccinated, as the benefits of vaccination far outweigh any harm, especially with the troubling Delta variant increasingly circulating.
Read more on the CDC’s webpage about Myocarditis and Pericarditis Following mRNA COVID-19 Vaccination.
U.S. Department of Health and Human Services
U.S. Centers for Disease Control and Prevention
American Academy of Family Physicians
American Academy of Pediatrics
American College of Obstetricians and Gynecologists
American College of Physicians
American Heart Association
American Hospital Association
American Medical Association
American Nurses Association
American Public Health Association
Association of Public Health Laboratories
Association of State and Territorial Health Officials
Council of State and Territorial Epidemiologists
Infectious Diseases Society of America
National Association of County and City Health Officials