Common cold often appears fever can return to normal in 24-72 hours, and the effect of antipyretic is obvious, not accompanied by dyspnea or shortness of breath, early mostly will not appear cough, mental impact is not significant. Novel coronavirus infection fever often lasts more than 72 hours, the effect of antipyretic drugs is not significant, there will be accelerated respiratory rate, dyspnea, heavy cough, poor mental health, fatigue, some will appear nausea, vomiting, diarrhea and other gastrointestinal reactions, incubation period 2-14 days.