Symptoms such as fever, malaise, and dry cough are possible in the pre-New Coronavirus stage. Neocoronavirus pneumonia is a more acute form of infectious pneumonia, and its causative agent is a new coronavirus. Most patients may present with asymptomatic or mild low-grade fever, mild malaise, and the absence of pneumonia but the presence of a dry cough at the time of infection, and a small number of patients may present with nasal congestion, runny nose, sore throat, and diarrhea. If the infection is not treated in time, severe respiratory distress, hypoxemia may occur one to two weeks after the onset of the disease, and may rapidly progress to acute respiratory distress syndrome, uncorrectable metabolic acidosis and coagulation dysfunction, etc., and many patients with the new coronavirus die of multi-organ failure. If you have an unexplained fever, fatigue, dry cough symptoms, to the hospital in a timely manner to do the nucleic acid test, a clear diagnosis in the doctor’s guidance to improve the relevant examination standardized treatment. [Tip] This article refers to the “new coronary pneumonia, new coronary virus pneumonia”, etc., has been December 26, 2022, the National Health Commission issued a notice to change the name to “new coronary virus infection”.