MAP4K3 and COVID-19: To validate the findings using COVID‐19 BALF cells, we also analyzed GLK‐positive epithelial cells of another published scRNA‐seq data (FigShare 12436517; Cohort #2) using nasal swab cells of 19 COVID‐19 patients (11 severe and 8 moderate) and five healthy controls (Chua et al, 2020; Appendix Fig S2).