This MAIT cell activation has been identified as an independent and significant predictor of death in COVID-19, associated with a hazard ratio of 5.9 for mortality and activation of CD8+ T cells and non-Vδ2 γδT cells, and elevated GM-CSF, CXCL10, CCL2, and IL-6(73). This evidence concerns the gene CXCL10 and COVID-19.