XAF1 and severe acute respiratory syndrome: This paper was the first study to report an association between XAF1 and SARS-CoV infections for any strain, to the best of our knowledge, though a recent report examining differential gene expression associated with SARS-CoV-2 infection identified increased expression of CXCL10, OAS3, IFIT3, and XAF1 in human epithelial lung cells and lung samples from Cynomolgus maca (cynomolgus monkey) and mice (35).