
Pfizer confirmed that at least one of its trials, which will include up to 500 teens and young adults under age 21, is slated to begin in the next couple of months. is underway, tracking adverse health effects - if any - that may appear in the years following a diagnosis of vaccine-associated heart problems. Moderna has already launched two trials, the most recent in September. Some doctors wonder if it can cause permanent damage to the heart. Most of those who developed the condition have fully recovered, although research so far has only looked at how well they're doing after several months. since late 2020, there have been around 1,000 reports of vaccine-related myocarditis or pericarditis in children under age 18, primarily young males, according to the Centers for Disease Control and Prevention.

Of the hundreds of millions of Covid vaccine doses given in the U.S. Are there long-term risks of myocarditis? It has also been observed as an infrequent but worrisome side effect of the mRNA Covid vaccines.

Myocarditis is a condition that has long been linked to a number of viral infections, including influenza, coxsackieviruses, as well as Covid.

Miller is one of a very small group of people in the United States who have experienced myocarditis following vaccination with the Pfizer-BioNTech or the Moderna Covid vaccines based on mRNA technology. “I was like, that’s crazy,” Miller said, noting that he knows the heart inflammation condition following vaccination is extremely rare.
