The English name is COVID-19. Novel coronavirus infection is a specific coronavirus that can present clinically with associated clinical symptoms such as fever, headache, sore throat, cough, dyspnea, and even nausea and vomiting. Pulmonary CT will suggest interstitial changes. Blood tests will show a decrease in white blood cells and lymphocytes, and C-reactive protein and calcitoninogen are usually normal. If the patient has a history of epidemiological exposure, has recently developed respiratory symptoms, and the results of the above-mentioned ancillary tests are consistent, we need to further improve the nucleic acid test for the virus.