Fever and cough may be the first symptom in patients with novel coronavirus pneumonia. Most patients with novel coronavirus pneumonia will present with fever and cough, accounting for 98%. However, not all patients with fever and cough are novel coronavirus pneumonia patients, and further clinical analysis is required to determine whether there is a history of novel coronavirus infection, such as whether they have been to an infected area or have a history of exposure. In addition to fever and cough, whether there are other symptoms of novel coronavirus infection such as body aches, fatigue and weakness, and whether respiratory symptoms such as shortness of breath, respiratory distress or even septic shock or coagulation disorders occur after a week. The main criteria for the diagnosis of novel coronavirus pneumonia are the presence of indications for detection of novel coronavirus, or changes in chest CT one week after the onset of fever or cough.