More importantly, the biological processes related to myeloid cell development and hematopoietic progenitor cell differentiation were significantly up-regulated in COVID-19 patients (Fig. 3b), including “regulation of DNA-binding TF activity”, “regulation of hemopoiesis”, “myeloid cell development”, “hematopoietic progenitor cell differentiation”, and “RNA splicing”. This evidence concerns the gene TF and COVID-19.