Myocarditis and Pericarditis After mRNA COVID-19 Vaccination
CDC and its partners are actively monitoring reports of myocarditis and pericarditis after COVID-19 vaccination. Active monitoring includes reviewing data and medical records and evaluating the relationship to COVID-19 vaccination.
Myocarditis is inflammation of the heart muscle, and pericarditis is inflammation of the outer lining of the heart. In both cases, the body’s immune system causes inflammation in response to an infection or some other trigger. Learn more about myocarditis and pericarditis.external icon Seek medical care if you or your child have symptoms of these conditions within a week after COVID-19 vaccination.
What You Need to Know
Cases of myocarditis reported to the Vaccine Adverse Event Reporting System (VAERS)external icon have occurred:
After mRNA COVID-19 vaccination (Pfizer-BioNTech or Moderna), especially in male adolescents and young adults,
More often after the second dose
Usually within several days after vaccination
Most patients with myocarditis or pericarditis who received care responded well to medicine and rest and felt better quickly.
Patients can usually return to their normal daily activities after their symptoms improve. Those who have been diagnosed with myocarditis should consult with their cardiologist (heart doctor) about return to exercise or sports. More information will be shared as it becomes available.
Both myocarditis and pericarditis have the following symptoms:
Chest pain
Shortness of breath
Feelings of having a fast-beating, fluttering, or pounding heart
Seek medical care if you or your child have any of these symptoms, especially if it’s within a week after COVID-19 vaccination.
If you have any health problems after vaccination, report them to VAERSexternal icon.
Healthcare Providers: For additional recommendations and clinical guidance, visit Clinical Considerations: Myocarditis after mRNA COVID-19 Vaccines | CDC.
Please, refer to the page to read more details and remember to question what is between the lines. Isn't it good they are paying attention on some problems the vaccines are causing? If they continue like this in 10 years it will be possible to know some long term effects of these vaccines. (Funny, same for clinical trials.)
