Novel coronavirus pneumonia starts with fever as the typical symptom, and may be combined with mild dry cough, fatigue, dyspnea, diarrhea, etc. Some patients may have symptoms such as runny nose and coughing sputum. About half of the patients may develop respiratory distress in a week or so, and in severe cases, the disease progresses rapidly and acute respiratory distress syndrome, septic shock, and metabolic acidosis and coagulation dysfunction, which are difficult to correct, can occur within a few days. In some patients, the onset of symptoms is mild or asymptomatic. Most patients have a good prognosis, while a few patients are critically ill or even die. Content source: Dr. You Lai