(HealthDay)—The incidence of myocarditis is low but increased among individuals aged 16 years and older who have received the Pfizer-BioNTech BNT162b2 mRNA vaccine, with the highest incidence among...

Myocarditis-or inflammation around the heart—has been reported in some patients with COVID-19. After searching the medical literature, researchers have now summarized the results of 41 studies describing...