The diagnosis of novel coronavirus pneumonia can be confirmed by the results of pathogenic microorganisms, after positive PCR, RT-PCR nucleic acid testing, or by genetic sequencing and the viral genome of novel coronavirus pneumonia is highly similar, with one of them can confirm the diagnosis of novel coronavirus pneumonia. The prerequisite is that the diagnosis can be confirmed in suspected patients plus the results of pathogenic microbial testing. Suspected patients should have epidemiological evidence, i.e., a history of travel or residence in Wuhan or surrounding areas, or contact with patients with definite fever and respiratory manifestations of dyspnea and cough, contact with patients who have cluster onset or have been diagnosed with neocoronavirus pneumonia, or a history of epidemiology in the same work environment, fever or respiratory symptoms themselves. cough, dyspnea, normal or low white blood cells and normal or low lymphocytes on blood tests, and a comprehensive judgment based on the above symptoms. Content source: Dr. You Lai