If the patient has only a cough with sputum and no other uncomfortable symptoms, it is probably not a novel coronavirus infection and is mostly considered to be due to a cold or chronic pharyngitis. Novel pneumonia infection is mainly manifested by fever, malaise and dry cough, and a few patients have respiratory and gastrointestinal symptoms such as nasal congestion, runny nose and diarrhea. However, if the patient meets the following conditions: cough with sputum; accompanied by fever, malaise, and diarrhea; history of travel or residence in Wuhan city two weeks before the onset of the disease, or exposure to patients with fever with respiratory symptoms from Wuhan. If there is no improvement after observation, there is a possibility of having novel coronavirus infection pneumonia, and you need to wear a mask and go to a designated hospital for consultation.