Many of these identified genes, including ACE2, SLC6A20, OAS3, CCR1, CXCR6, IFNAR2, IL10RB, and DPP9, have been reported to be associated with COVID‐19 susceptibility in previous studies.15, 19, 67, 68, 69, 70, 71. This evidence concerns the gene DPP9 and COVID-19.