LZTFL1 and COVID-19: ,23 LZTFL1 was expressed in airway ciliated cells in both healthy and COVID-19-succumbed lungs (Fig. 3a, Supplementary Table S1), which is consistent with the previous report34,36 and the Human Protein Atlas data (https://www.proteinatlas.org/ENSG00000163818-LZTFL1/celltype) from healthy lungs, suggesting that the expression level of LZTFL1, which is affected by the COVID-19 GWAS locus (rs11385942 risk allele), can be critical for airway viral clearance.