ESR1 and acute myocarditis: As such, both inner and adoptive immune systems get activated, leading to the infiltration of mononuclear cells into the myocardium.9 In this regard, multiple reports have shown acute myocarditis as a serious complication of COVID-19; nevertheless, the prevalence has remained uncertain.10-12 Consistently, we found 15 cases of myocarditis and higher levels of ESR and CRP in patients with CV complications.