“But in subsequent publications, reporting on studies with tens of thousands of athletes, the actual incidence of myocarditis in college athletes with COVID is much lower than had been originally thought. “That number was originally thought to be really high,” says Yale Medicine cardiologist Rachel Lampert, MD. Some were in college athletes, which initially raised concerns among doctors. There have been some case reports of myocarditis after COVID-19 infection.
“While we are taking these reports of myocarditis very seriously, we-along with the CDC-continue to feel that the benefits of being vaccinated against COVID-19 far outweigh the very small risk of getting myocarditis related to the vaccine itself.” “I think that the most important message at this point is that we are still recommending eligible people older than 12 follow the vaccine recommendations from the CDC,” he says. He adds that patients seem to get better quickly. “This is an incredibly rare event,” says Dr. Still, doctors are reassuring patients and families. As with any medical intervention, physicians and agencies-including both the Food and Drug Administration (FDA) and CDC-continually monitor the use and side effects of vaccines, which is why they’re looking into these cases. “And, though rare, myocarditis can be caused by an immune response to a vaccine such as the smallpox vaccine, which was the most successful vaccine in world history.”Īt this point, it’s too early to tell what may be causing the recently reported myocarditis cases. Myocarditis can also be caused by certain medications, as well as by some autoimmune diseases,” he says. “Examples include viruses that cause typical colds or gastrointestinal illnesses. Myocarditis can be caused by a variety of common viruses, explains Jeremy Asnes, MD, chief of pediatric cardiology at Yale Medicine and co-director of the Yale New Haven Children’s Hospital Heart Center. In May, the Advisory Committee on Immunization Practices COVID-19 Vaccine Safety Technical (VaST) Work Group, a special panel that advises the CDC, reported that the cases were occurring about four days after vaccination.
The safety group reports that the majority of cases have occurred in people 30 years old and under, mostly in males, and more often than not, inflammation occurred after the second dose of the vaccine. This inflammation may occur in the heart muscle (myocarditis) or in the outer lining of the heart (pericarditis). The CDC’s Advisory Committee on Immunization Practices said that there’s a “likely association” between the Pfizer and Moderna vaccines and reported cases of heart inflammation. It’s important to note that the vaccination is still recommended for everyone who is eligible. And now the Food and Drug Administration (FDA) has announced it will place a warning on the mRNA vaccines.
The side effect is considered important but uncommon-arising in about 12.6 cases per million second doses administered. It became a trending topic this spring when the Centers for Disease Control and Prevention (CDC) reported that it is monitoring a small number of cases of heart inflammation that have arisen in young adults not long after mRNA COVID-19 vaccination. Myocarditis, an inflammation of the heart muscle, is a medical condition you may not have heard much about-until recently. Because information about COVID-19 changes rapidly, we encourage you to visit the websites of the Centers for Disease Control & Prevention (CDC), World Health Organization (WHO), and your state and local government for the latest information. Note: Information in this article was accurate at the time of original publication.
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