The majority of the population cured after infection with Neocolla is in good health, while a small proportion of the population may develop sequelae. Currently, the vast majority of the population is diagnosed as asymptomatic or mildly infected, with low viral loads, mild clinical symptoms, and no obvious abnormalities on lung CT. After scientific and systematic treatment, the virus is completely eliminated and the infection causes less damage to the patient’s systems, thus causing no sequelae. However, a small number of patients with common, severe and critical illnesses may experience respiratory distress and/or hypoxemia during the onset of the disease, or even develop acute respiratory distress syndrome, etc., which may cause damage to the lungs and pulmonary fibrosis, etc., and may have a certain impact on the patient’s respiratory function.