Symptoms may be present generally 1 to 14 days after being infected with a new crown, with most being symptomatic for 3 to 7 days. The incubation period of new coronavirus pneumonia is 1~14 days, mostly 3~7 days. Fever, dry cough, and malaise are usually the main clinical symptoms, and some patients may present with nasal congestion, sore throat, runny nose, diarrhea, muscle pain, decreased or loss of smell and taste, and conjunctivitis. After being infected with New Crown, usually 1~14 days may have the above symptoms, and most of them have symptoms for 3~7 days. Severe patients may develop respiratory distress and hypoxemia one week after the onset of the disease, and some may progress to acute respiratory distress syndrome, coagulation dysfunction, septic shock, uncorrectable metabolic acidosis, and multi-organ failure, which can endanger the patient’s life if not treated in a timely manner. People with epidemiologic history are advised to isolate and seek medical attention early. [Tip] This article refers to “new coronary pneumonia, new coronary virus pneumonia”, etc., has been December 26, 2022, the National Health Commission issued a public announcement to change the name to “new coronary virus infection”.