Patients with new crown infections tend to have mild or asymptomatic infections and generally do not develop sequelae. Critically ill patients may have sequelae in various aspects such as respiratory system, circulatory system and nervous system. 1. Respiratory system: New coronavirus most often attacks the lungs, causing a decline in lung function, because critically ill patients usually suffer from chronic diseases, some patients may still experience long-term respiratory difficulties after recovery. 2. Circulatory system: Neo-coronaviruses, like other viruses, cause inflammation, which may result in myocardial damage and ischemia, leading to a series of cardiac complications, such as arrhythmias and coronary atherosclerosis. 3. Neurological: Critically ill patients are susceptible to neurological damage during hospitalization, which can lead to neurological sequelae such as decreased sense of smell and taste, lack of concentration, and cognitive impairment after recovery. If you are infected with the new crown virus, you must consult a doctor in a timely manner to minimize the occurrence of sequelae of the new crown.