The manifestations of infection with novel coronavirus mainly include fever, malaise, dry cough, etc. A few patients are accompanied by nasal congestion, runny nose, diarrhea and other symptoms, and the clinical manifestations of severe patients include acute respiratory distress syndrome and multi-organ failure. There are also some patients without obvious symptoms. Novel Coronavirus Pneumonia is a multi-system disease mainly of the respiratory system caused by Novel Coronavirus infection. Due to individual differences, novel coronavirus infection can lead to multiple tissue lesions in the body, and symptoms may vary. There are also some patients who have no obvious symptoms. The incubation period of the disease is usually 3 to 7 days, with a maximum of 14 days. The main manifestations are fever, malaise and dry cough. A few patients are accompanied by nasal congestion, runny nose, and diarrhea. Severe cases usually develop respiratory distress after 1 week, with rapid progression to acute respiratory distress syndrome, infectious shock, metabolic acidosis, and coagulopathy in severe cases. When the patient has the above manifestations, and there is a possibility of previous contact with the new coronavirus infected people, should be sent to the designated medical institutions as soon as possible to the fever clinic for relevant examinations to clarify the diagnosis, do not delay the condition. Tips] In this article, “new coronavirus pneumonia” and “new coronavirus pneumonia” have been renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.