Similarly, Yan et al. (2020) found up‐regulation of genes associated with the PGE2 synthesis pathway including PLAs, COX‐1, COX‐2, and PTGES3 during the disease progression of COVID‐19 patients, compared with that of healthy individuals in a longitudinal transcriptome analysis of peripheral blood mononuclear cells. Here, PTGS1 is linked to COVID-19.