No fever, only cough, not necessarily the new coronavirus pneumonia. This is because there are many diseases that can cause cough symptoms, such as common colds, bronchitis, pharyngitis, or bronchial asthma, chronic bronchitis, chronic obstructive pulmonary disease, or even tuberculosis or lung cancer, all of which can cause a cough and no fever. So you want to determine what disease is causing the cough without fever and only cough? You need to go to the hospital for a CT of the chest, blood sampling, and then a pulmonary function test to basically determine what the cause is. The current diagnostic criteria for novel coronavirus pneumonia is that the diagnosis can only be confirmed if the nucleic acid in the respiratory tract or blood is positive. Therefore, the diagnosis of new coronavirus pneumonia cannot be made on the basis of symptoms, such as fever or cough, which can easily lead to misdiagnosis and is unscientific.