IL6 and COVID-19: Ruan et al. [41] found that, on a sample of 150 patients confirmed COVID-19, the ones who died had higher levels of troponin, myoglobin, C-reactive protein, serum ferritin and IL-6; among 68 deaths, 7% were attributed to myocarditis with circulatory failure and 33% were cases in which myocarditis might contribute in the patient’s demise.