The COVID-19 lead variant rs1886814:A>C in the FOXP4 locus is correlated (r2 = 0.64) with a lead variant of lung adenocarcinoma (tag variant is rs7741164; OR = 1.2, P = 6.0 × 10−13)6,22 and similarly with a lead variant reported for subclinical interstitial lung disease23. Here, FOXP4 is linked to COVID-19.