Dizziness is not necessarily caused by neocoronavirus. Neocoronavirus is mainly manifested by fever, malaise, and dry cough, etc. Some patients also have non-respiratory symptoms as the first symptoms, such as digestive system symptoms, such as mild nausea, malaise, poor spirit, nausea, vomiting, diarrhea, etc.; neurological symptoms such as headache; cardiovascular system symptoms such as panic and chest tightness; ophthalmic symptoms such as conjunctivitis; or Only mild muscle aches and pains in the limbs and lower back. Patients with severe cases tend to develop respiratory distress or (and) hypoxemia after 1 week, with rapid progression to acute respiratory distress syndrome, septic shock, uncorrectable metabolic acidosis, and bleeding and coagulation dysfunction in severe cases. It should be noted that severe and critically ill patients may have moderate to low fever or even no significant fever during the course of the disease; mildly ill patients present with only low fever, mild malaise, etc., without pneumonia manifestations, and mostly recover after 1 week.