The 14 of 48 genes were as follows: BST2, IFIT1, IFIT2, IFIT3, IFITM1, ISG15, MX1, MX2, OAS1, OAS2, OAS3, OASL, RSAD2, and STAT1, suggesting the potential diagnostic role for COVID-19. Here, OAS2 is linked to COVID-19.