TMPRSS2 and COVID-19: As vaccines will not be available for the general population until the end of 2020, approved off-label and experimental drugs that are effective against COVID-19 have been identified, including TMPRSS2 and ACE2 inhibitors, antifungal and antimalarial products, antiviral medicines inhibiting viral RdRp, proteases, virus/host cell membrane fusion inhibitors, and antiviral phytochemicals.