Israel, 28 May 2021, Mouch et al, Vaccine
In a three-week interval (January 30th through February 20th 2021, six men were hospitalized with suspected myocarditis, all shortly after the vaccination. Five patients had elevated serum troponin T levels (peak levels 392–1062 ng/L; normal level < 13 ng/L) and one patient had an elevated high-sensitivity cardiac troponin-I level (14350 ng/L; normal level < 34 ng/L). The echocardiographic examination was normal in four patients, and revealed a borderline left ventricular ejection fraction in two patients. The CMR revealed findings which were compatible with myocarditis (myocardial edema and late gadolinium enhancement) in all patients.