Neocoronavirus is a new coronavirus, infection with which can lead to neocoronavirus pneumonia. Symptoms usually appear 1 to 14 days after infection, with the majority of patients experiencing symptoms between 3 and 7 days after clinical presentation. New coronavirus pneumonia, referred to as new coronavirus pneumonia, is an inflammation of the lungs caused by a new coronavirus, the disease has a certain incubation period, infection may not be immediately after the onset of the disease, usually 1~14 days after infection can appear symptoms, mostly 3~7 days, the specific time of symptoms vary from person to person with a certain degree of variability. The disease is characterized by fever, dry cough, fatigue, and in a few patients, nasal congestion, runny nose, sore throat, myalgia, diarrhea, etc. During the epidemic period, once the above symptoms appear, the patient should consult a doctor for isolation and treatment in a timely manner. Tip: “New coronavirus pneumonia” and “new coronavirus pneumonia” mentioned in this article have been renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.