Interestingly, the level of IL-20R2, and not IL-20R1, was particularly higher in SARS-CoV-2 infected AECs and in nasopharyngeal swabs of COVID-19 patients (Fig. 2J, log-fold of 1.08 ± 0.2, in SARS-CoV-2 infected AECs; P = 0.0002, and Fig. 2K, log-fold of 0.1 ± 0.02, in COVID-19’s nasopharyngeal swabs; P = 0.010). Here, IL20RA is linked to COVID-19.