HT17. COVID-19 vaccinated individuals may be ill…See more

For years, scientists and physicians have known that mRNA-based COVID-19 vaccines, while remarkably effective and broadly safe, carry a small but real risk of causing myocarditis — inflammation of the heart muscle — particularly in young men and adolescents. Now,

a research team at Stanford Medicine has identified the precise biological mechanism behind this phenomenon, offering not only a clearer scientific picture but also a potential path toward preventing the condition altogether.

The findings, published in Science Translational Medicine, represent a significant step forward in understanding how the immune system can, in rare cases, turn its powerful defenses against the very organ it is meant to protect.