SARS is the abbreviation of Severe Acute Respiratory Syndrome, also known as Infectious Atypical Pneumonia, or SARS is a new infectious disease caused by coronavirus infection, with lung lesions as the main cause and multiple organ involvement. There is generally an incubation period of 5-14 days, and the first symptom of sudden onset is high fever, which may be accompanied by chills, joint and muscle pain, general weakness, loss of appetite, chest pain, diarrhea and other symptoms, and symptoms such as shortness of breath, respiratory distress and even acute respiratory distress syndrome appear in the middle and late stages. Laboratory tests can reveal normal or decreased white blood cells and decreased blood lymphocytes in the peripheral blood, and solid or interstitial lung changes can be seen on lung imaging. In contrast, pathogenic tests are usually positive around 10-21 days. SARS patients test positive for coronavirus nucleic acid, corresponding to treatment firstly, isolation, allowing patients to ensure adequate rest, maintaining water and electrolyte balance, and replenishing body fluids and vitamins. Oxygen therapy is also often given to patients with respiratory distress, usually by continuous nasal cannula or face mask administration of oxygen. Antiviral, anti-infective, antipyretic and analgesic treatments are also given. Patients with mild cases usually recover spontaneously or after treatment, and the overall prognosis of the disease is good, so patients need to maintain confidence in the treatment of the disease and actively cooperate.