In addition, this study analyzed the transcriptome of bronchial epithelial cells and the serum cytokine and chemokine profiles of deceased COVID-19 patients, and confirmed an increase in inflammatory chemokines like IL-6, IL1RA, CCL2 and CCL8 (Blanco-Melo et al., 2020), suggesting immunologic misfiring in COVID-19. This evidence concerns the gene CCL2 and COVID-19.