Consistent with the general conclusion, there are several genetic patterns of susceptibility for COVID-19, including: ACE2, TMPRSS2, Cathepsin, FURIN, MX dynamin-like GTPase 1 (MX1), Basigin (BSG), IFN-γ, IL-17A/F, HLA, cytokine storm, TLR genes, p.Ser1103, Tyr-SCN5A, p.Arg514Gly, p.Val160Met, p.Gly181Arg, p.Arg240Cys, p.Gly259Ser, p.Pro335Leu, p.Gly432Ala, Telomeres, and immune complexes (ICs) [18, 19, 30, 32, 33, 38–40, 43, 44, 51]. The gene discussed is ACE2; the disease is COVID-19.