Cough is a symptom common to many diseases, so cough cannot be used as a basis for the diagnosis of novel coronavirus. Patients with novel coronavirus infection can have fever, cough, sputum, and even chest tightness, breath-holding, and difficulty breathing, but it cannot be said that coughing is novel coronavirus infection. Many diseases of the respiratory tract, such as bronchitis, colds, asthma, tumors, and tuberculosis, can have cough symptoms. Therefore, when diagnosing novel coronavirus infection, in addition to the patient’s cough and fever symptoms, the patient should be given a chest CT and nucleic acid testing of secretions, and relevant epidemiological history of the new coronavirus needs to be asked, through the above comprehensive judgment to determine whether the patient is infected with the novel coronavirus, and cannot be determined simply by symptoms.