The typical presentation of novel coronavirus infection includes symptoms of cough, usually a dry cough. Most patients also have fever and general malaise, especially fever, which is usually the first symptom. However, due to the existence of individual differences, the symptoms of the virus infection vary. Although most patients have typical symptoms, a small number of patients often have atypical symptoms, such as nasal congestion, runny nose, nausea, vomiting, diarrhea, etc., without obvious fever and dry cough, so it is inaccurate to judge the novel coronavirus infection only from the symptoms. For people who have had a history of epidemiological exposure and have a dry cough, fever and other physical manifestations, it is best to visit fever clinics around the world in a timely manner and undergo pathogenic testing before a final diagnosis can be made.