IL6 and COVID-19: In this study, we integrated findings from analyses of fully anonymized clinical data on COVID-19 patients from the Mount Sinai Health System with those from studies on human induced pluripotent stem cell (hiPSC)-derived ventricular cardiomyocytes in culture infected with SARS-CoV-2 in the absence and presence of physiological concentrations of IL-6 and IL-1β.