A cough without other symptoms is usually not a case of novel coronavirus pneumonia. Novel Coronavirus Pneumonia is a respiratory infectious disease caused by Novel Coronavirus infection, and its typical symptoms are dry cough, fatigue and fever, not just cough. The symptoms of cough are not specific and are closely related to many diseases, especially respiratory infectious diseases and non-infectious diseases, such as the common cold, pneumonia, bronchitis, bronchiectasis, can cause cough symptoms, but can not be said that the cough is necessarily the new coronavirus pneumonia, and the two do not have a necessary link. Therefore, only cough, no epidemiological history, usually is not new coronavirus pneumonia, unless the patient has an epidemiological history, can be improved nucleic acid and lung CT examination to clarify.