The criteria for fever in novel coronavirus pneumonia are the same as those for ordinary fever, i.e., an axillary body temperature of more than 37.3°C is considered a fever, and the presence of fever needs to be taken seriously. The main symptoms of novel coronavirus infection include fever (≥37.3℃), malaise, dry cough, etc. Some patients only show low fever and mild malaise without pneumonia manifestations, and a few patients have symptoms such as nasal congestion, runny nose and diarrhea. The incubation period of novel coronavirus infection is generally 3-7 days, with the longest period not exceeding 14 days. Patients in the incubation period have no symptoms but are infectious.