The new coronavirus determination criteria were not changed to a pulmonary infection. Novel coronavirus pneumonia is defined as pneumonia caused by a novel coronavirus infection. Novel coronavirus pneumonia is an acute infectious disease. People infected with the new coronavirus are the source of infection, spread through the respiratory tract, close contact and aerosols, and the population is generally susceptible. The clinical symptoms of new coronavirus pneumonia are mainly fever, dry cough and malaise, and the performance varies with different clinical subtypes. The diagnosis of neocoronavirus pneumonia needs to be made based on comprehensive analysis of epidemiology, clinical manifestations, and laboratory tests. However, a positive nucleic acid test for novel coronavirus is the primary criterion for confirming the diagnosis. There is no change to pulmonary infection. At present, in the infection of Ocmijon strain is mostly seen in the absence of clinical manifestations, and CT imaging without new coronary pneumonia features, respiratory tract and other specimens of novel coronavirus pathogenicity test positive, known as asymptomatic infection. Daily life with novel coronavirus pneumonia focuses on prevention of infection and effective isolation of cases. Under the guidance of a professional doctor to carry out active and effective treatment. [Note: In this article, the terms “new coronavirus pneumonia” and “new coronavirus pneumonia” were renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.