TNNI3 and COVID-19: Early in the COVID-19 pandemic, evidence suggested that SARS-CoV-2 interacts with the cardiovascular system, and several studies linked COVID-19 prognosis to cardiac biomarkers [42,43,44,45,46], including cTnI, CRP, D-dimer, procalcitonin (PCT), N-terminal pro-B-type natriuretic peptide (NT-proBNP), and CK-MB.