However, compared to pneumonia caused by other viruses, we found that the inflammatory indicators (CRP, PCT, ESR, IL-6, LDH), as well as biochemical indicators associated with organ or tissue damage (ALT, AST, CK, CK-MB), and indexes associated with disseminated intravascular coagulation, were lower in the children with COVID-19 pneumonia. This evidence concerns the gene ESR1 and Disseminated intravascular coagulation.