Moderna’s COVID-19 shot may cause two to three times as many heart-related side effects as Pfizer’s, according to a new Canadian study. The rates of myocarditis and pericarditis in individuals within

by Paul Alexander

21 days of getting their second shot were 35.6 and 22.9 per million doses, respectively, for Moderna compared to 12.6 and 9.4 per million for Pfizer, the research found. Dylan Housman