The plasma IL-6 level in COVID-19 was associated with total WBC (r = 0.39, p<0.05); IL-10 levels were positive associated with WBC (r = 0.39, p<0.05) and negatively associated with Basophils (r = -0.51, p<0.01) in COVID-19 active cases; IL-17 levels in COVID-19 active cases was positively associated with Neutrophil (r = 0.39, P<0.05). The gene discussed is IL17A; the disease is COVID-19.