Neocoronaviruses refer to novel coronaviruses, which are often transmitted through respiratory droplets, close contact, and aerosols. New coronavirus can cause new coronavirus pneumonia. According to relevant authoritative information, the new coronavirus is highly infectious, mainly through respiratory droplet transmission and close contact transmission, and secondly, in a relatively closed environment, the new coronavirus can also be transmitted through aerosols. In addition, based on current epidemiologic investigations, novel coronaviruses can incubate in the human body for 1 to 14 days, but in most cases they incubate for 3 to 7 days. Usually, for people suspected of being infected with novel coronavirus, it is necessary to do nucleic acid test, nucleic acid test and other related examination programs in time. As the disease develops, patients will have fever, dry cough, malaise and other major manifestations. In daily life, it is necessary to do all the protective measures, strengthen the daily life management, active vaccination, and if the new coronavirus infection is detected, it is necessary to go to the hospital for treatment in a timely manner. Tips] In this article, “new coronavirus pneumonia” and “new coronavirus pneumonia” have been renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.