During the pneumonia epidemic of novel coronavirus infection, it is recommended to take home isolation for observation if symptoms such as fever and cough are present and the following conditions are present: 1. Mild symptoms, body temperature below 38°C, no obvious shortness of breath, shortness of breath, chest tightness, difficulty in breathing, and stable vital signs such as respiration, blood pressure and heart rate. 2, no serious respiratory system, cardiovascular system and other underlying diseases and serious obese people. But home isolation process, if the temperature continues for more than 2 hours does not subside; appear chest tightness, shortness of breath; respiratory rate ≥ 30 times / min, with respiratory distress and lip cyanosis and other manifestations, it should be to the designated hospital with effective isolation conditions and protective conditions isolation treatment.