Myocarditis is a known — but small — side effect of the mRNA Covid vaccines from Pfizer and Moderna, information that federal agencies have discussed openly since 2021.

In March 2024, the U.S. Centers for Disease Control and Prevention released an entirely redacted, 148-page study on myocarditis outcomes after a COVID-19 vaccination. In March 2024, anti-vaccine advocates claimed that the U.S. Centers for Disease Control ...

CHICAGO (WLS) -- A handful of teenagers and young adults who received the COVID-19 vaccines have experienced heart inflammation, according to the Centers for Disease Control and Prevention, which is recommending further study of the rare condition.

U.S. Food and Drug Administration officials said COVID-19 vaccines killed at least 10 children, providing no evidence for the statement. Citing these deaths, the agency said it plans to make existing vaccine regulations more strict.

While the investigation into cases of myocarditis possibly associated with COVID vaccines proceeds, the American Heart Association (AHA)/American Stroke Association (ASA) continue to urge everyone who is eligible for the vaccine to get it without delay.

COVID-19 patients had 15.7 times the risk for myocarditis compared with patients who didn’t have COVID-19, with risk varying by sex and age, according to a CDC Morbidity and Mortality Weekly Report published Aug. 31. CDC researchers examined March 2020 ...