Dry cough caused by a novel coronavirus infection is contagious. Dry cough is a common clinical manifestation and can be caused by a variety of diseases. In the current emergence of novel coronavirus pneumonia, the main symptoms are fever, malaise, chills, and predominantly dry cough. Some patients do not have fever and may present with clinical manifestations such as chest tightness and dyspnea. The infection rate can usually be reduced by enhancing hygiene and health awareness and strengthening exercise. If you have fever, dry cough and other symptoms of respiratory infection, especially if you have been to the infected area before the onset of the disease, you need to wear a mask and go to the fever clinic in time.