Besides, a number of genes found in both mild and severe COVID-19 cases (IFI27, IFITM3, IFI6, IFIT3, MX1, IFIT1, OASL, IFI30, OAS1) and genes only in severe cases (S100A8, IFI44, IFI44L, CXCL8, CCR1, PLSCR1, EPSTI1, FPR1, OAS2, OAS3, IL1RN, TYMP, BCL2A1) are reported as well. This evidence concerns the gene IFITM3 and COVID-19.