Closer look at Myocarditis after Covid-19 mRNA Vaccination

Summary The Centers for Disease Control and Prevention recently reported cases of myocarditis and pericarditis in the United States after coronavirus disease 2019 (Covid-19) messenger RNA (mRNA) vaccination.1 In recently published reports, diagnosis of myocarditis was made with the use of noninvasive imaging and routine laboratory testing. Here, we report two cases of histologically confirmed myocarditis…