In keeping with results of the transcriptional analyses, the levels of IFN-III and IFN-I measured in BALF from patients with COVID-19 were elevated (Figures 6A–6D; STAR Methods) and, among IFN-III, showed a predominant induction of IFN-λ2,3 compared to IFN-λ1 (Figure S6A). This evidence concerns the gene IFNL1 and COVID-19.