Abbreviations: 3 CLpro, 3C‐like protease; Ab, antibody; ACE2, angiotensin converting enzyme 2; ALA, α‐lipoic acid; ARB, arbidol; CoV, coronavirus; CTM, Chinese traditional medicine; HIV, human immunodeficiency virus; IBV, bronchitis virus; IFN, interferons; IVIg, intravenous gammaglobulin; LPV/RTV, lopinavir/ritonavir; mAb, monoclonal antibody; PLpro, papain‐like protease; PUFA, polyunsaturated fatty acids; RDV, remdesivir; S, spike; Ta1, thymosin α‐1; TP5, thymopentin; Vit, vitamin.