The main criteria for determining the improvement of novel coronavirus pneumonia are as follows: 1. Self-perceived symptoms are improving, i.e., the main symptoms of fever, cough, and malaise have begun to improve, and at this point, it is likely that it has entered the recovery period. The earliest manifestation may be the first return to normal temperature, which is one of the criteria for discharge, that is, the body temperature is required to be normal for more than 3 days to achieve the first criterion for discharge; 2, chest CT has a significant improvement in the absorption, especially exudative changes in the obvious improvement, but also to achieve the second criterion for discharge; 3, pharyngeal swab nucleic acid test is negative, the requirement of the two nucleic acid is negative, and the two tests also need to be spaced between the middle of the 24-hour interval. If the two negative nucleic acid symptoms significantly improved, the body temperature is normal for more than 3 days, chest CT exudate changes are also significantly improved, it will meet the discharge criteria. Of course, the self-judgment criterion is to feel that the symptoms of fatigue, cough and temperature are improving. General symptoms worsened from the second week after the onset of symptoms worsened, the general symptoms began to improve in about 10 days began to show significant improvement. Source: Dr. Yurai