DPP9 and COVID-19: Using WES data, we focused on nine genes that have been reported to be involved in the SARS-CoV-2 entry pathway (ACE2, RAB7B, ADAM17, TMPRSS2), host immune response (IFNAR2, TYK2), and/or were previously shown to be associated with COVID-19 outcomes (DPP9, LZTFL1, SLC6A20).