Pneumonia in novel coronavirus infection is characterized by fever, malaise, and dry cough, with a few patients having symptoms such as nasal congestion, runny nose, and diarrhea. Severe cases tend to develop respiratory distress after 1 week, with rapid progression to acute respiratory distress syndrome, septic shock, uncorrectable metabolic acidosis, and bleeding and clotting disorders in severe cases. For those who are currently asymptomatic, prompt medical consultation is recommended if the following conditions occur, as there is a possibility of being infected by the novel coronavirus: 1. The presence of fever, closely monitored temperature persists for more than 2 hours and does not subside. 2, the appearance of chest tightness, shortness of breath, respiratory rate ≥ 30 times / min, with dyspnea and lip cyanosis and other manifestations.