New Research May Help Explain Rare Heart Inflammation Cases After Vaccination
Researchers now suspect that in rare cases, an unusually strong burst of immune messengers like interferon-gamma and CXCL10 may temporarily draw inflammatory cells toward the heart, triggering myocarditis. Most documented cases after mRNA vaccination have been mild, treatable, and resolved with monitoring—very different from the broader, more dangerous heart and vascular damage seen after COVID-19…