Neocoronavirus infection, i.e., infection with novel coronavirus pneumonia, the disease is spread mainly through droplet transmission, contact transmission, and aerosolization. 1. Droplet transmission: the droplets produced by sneezing, coughing and talking of patients infected with new coronavirus pneumonia can lead to infection if they are directly inhaled into the respiratory tract by people in close contact. 2. Contact transmission: In addition to direct inhalation into the respiratory tract, if the droplets are deposited on the surface of objects used by patients with new coronavirus, other people can carry the new coronavirus on their hands after contacting these objects, which can lead to infection through re-contact with mucous membranes in the oral cavity, nasal cavity, and other mucous membranes. 3. In addition, if droplets are mixed in the air to form aerosols, inhalation may also lead to infection. Therefore, during the outbreak of new coronavirus pneumonia, you should wear a good mask when you go out and pay attention to hand hygiene and wash your hands frequently. Tip: “New coronavirus pneumonia” and “new coronavirus pneumonia” mentioned in this article have been renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.