Scientists have pinpointed why mRNA COVID-19 vaccines can occasionally inflame the heart: an overactive immune response that briefly turns protective signals into damaging ones. Credit: Shutterstock Researchers at Stanford Medicine have identified the biological steps that explain how mRNA-based COVID-19 vaccines can, in rare cases, lead to heart inflammation in some adolescent and young adult males. Their work also points to a potential strategy for lowering that risk. By combining modern

Tag-uri: Coronavirus