New crown generally refers to new coronavirus pneumonia. Currently, the symptoms of new coronavirus pneumonia are dry cough, malaise, fever, nasal congestion, and loss of taste, etc. In some asymptomatic infections, there may be no obvious clinical symptoms, so it is not possible to make a generalization. Novel Coronavirus Pneumonia is a new acute infectious disease, mainly caused by Novel Coronavirus infection. Symptoms of novel coronavirus pneumonia are dry cough, malaise, fever, nasal congestion, loss of taste, loss of smell, muscle pain, and gastrointestinal reactions such as diarrhea, decreased appetite, nausea, and vomiting. It should be noted that due to the current popularization of vaccines and the strong immunity of infected patients, some patients with novel coronavirus pneumonia do not show obvious clinical symptoms and their condition is relatively mild. It is not possible to generalize the clinical symptoms of novel coronavirus pneumonia. For those who are suspected to have been exposed to novel coronavirus pneumonia or have symptoms of novel coronavirus infection, it is recommended that they go to their local immunization hospitals to undergo relevant examinations to identify the cause of the disease. Note: The terms “new coronavirus pneumonia” and “new coronavirus pneumonia” mentioned in this article were renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.