High levels of CXCR4 direct cells to destroy lung tissue.[50] In a mixed cohort of Latins, Asians, and whites, fatal COVID‐19 is associated with elevated CXCR4 in bystander T cells.[52] Interestingly, another study with Caucasian participants showed that low levels of CXCR4 were associated with COVID‐19.[53] Due to contradictory results, more studies are required to determine the function of CXCR4. The gene discussed is CXCR4; the disease is COVID-19.