The laboratory data in this study, no matter from the first tests or the last tests after admission, strongly confirmed that the levels of inflammation-related indicators (including IL-6, PCT, CRP, hs-CRP, neutrophil ratio and neutrophil count) in deceased patients with severe/critical COVID-19 were remarkably higher than that in recovered patients and positively correlated with the incidence of mortality. The gene discussed is MAP3K14; the disease is COVID-19.