New coronary, i.e., new coronavirus pneumonia, the disease may have no obvious symptoms, and those that do have symptoms are mainly characterized by fever, malaise, and dry cough. A few patients may be accompanied by nasal congestion, sore throat, diarrhea and other symptoms. This disease is caused by the new coronavirus infection and lung inflammation, mild patients only show symptoms such as fatigue, low fever, no obvious pneumonia. Some young children may not show typical symptoms, but may show gastrointestinal symptoms such as vomiting and diarrhea, or symptoms such as depression and shortness of breath. Patients with severe cases of neococcal pneumonia usually develop symptoms such as dyspnea, inattention and lethargy about one week after the onset of the disease, and in severe cases, the symptoms may rapidly progress to septic shock, organ failure, acute respiratory distress syndrome and other critical conditions. Once the disease is diagnosed, appropriate measures such as isolation treatment should be taken, and patients should actively cooperate. Tips] The “new coronary pneumonia, new coronary virus pneumonia” mentioned in this article has been renamed to “new coronary virus infection” on December 26, 2022, as announced by the National Health Commission.