Literature about the roles of TGF-β1 in various viral infections was searched using the keyword “TGF” and one of the following virus names: “HIV”, “influenza”, “cytomegalovirus” or “CMV”, “HBV”, “rubella”, “Zika”, “HSV”, “SARS-CoV-2”. The gene discussed is TGFB1; the disease is viral infectious disease.