The full name of New Crown is Novel Coronavirus Pneumonia. Novel coronavirus pneumonia is not airborne. Novel coronavirus pneumonia is mainly spread by respiratory droplet transmission, close contact transmission, and aerosolized transmission. Currently, the most important means of transmission of the new coronavirus pneumonia are respiratory droplet and close contact, in addition to contact with virus-contaminated objects or in a relatively freezing environment through aerosols can also be transmitted. The public should pay attention to hand hygiene, wear masks scientifically, ventilate often and gather less to reduce the chance of viral infection. New coronavirus pneumonia is mainly transmitted by patients with new coronavirus infection and asymptomatic infected people. It is contagious during the incubation period, and is more contagious 1~2 days before and 5 days after the onset of the disease. Once diagnosed as positive for novel coronavirus pneumonia, isolation should be carried out immediately. 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.