Currently, patients with novel coronavirus infectious pneumonia have spread to 31 provinces (autonomous regions and municipalities directly under the central government) in China, and confirmed cases have been seen in more than 20 countries abroad. Because novel coronavirus infection pneumonia has a certain incubation period, and in the incubation period also has a certain degree of contagiousness, so the speed of transmission is relatively fast. Once diagnosed, it should be immediately isolated for treatment, and during the prevention and control of the epidemic, you should minimize going out, wear a mask when you go out, wash your hands regularly, and pay attention to keeping the indoor air fresh.