Epidemic infection, which in recent times generally refers to infection with a novel coronavirus, can be cured in the vast majority of patients after infection. According to clinical data, the proportion of patients with heavy or critical types is small, basically below 15%, and the mortality rate is between 2% and 5%, so the vast majority of patients can be cured. After infection with the new coronavirus, obese people, women during pregnancy and childbirth, elderly people, and people with chronic underlying diseases are more at risk, and if they become critical, they are prone to respiratory failure, heart failure and other symptoms, which can be life-threatening. In addition, some patients can be completely cured of lung inflammation, but some sequelae may remain, while a few patients may develop pulmonary fibrosis after treatment, which is a more serious long-term complication. If a patient is diagnosed with novel coronavirus infection, isolation and targeted treatment, such as antiviral medication, is required. If the patient has respiratory distress, oxygen therapy is required. Patients also need bed rest, intensive supportive therapy, attention to water-electrolyte balance, and maintenance of a stable internal environment to promote physical recovery. In addition, patients need to be rechecked in the 2nd and 4th weeks after recovery to avoid re-surgery.