In general, the onset of infection with novel coronavirus occurs 3-7 days after infection, and at the latest about 14 days. Therefore, when you suspect that you may be infected with novel coronavirus, the first 14 days are very important. If there are no obvious symptoms, it is not recommended to go to the hospital to prevent cross-infection and aggravation of the disease. You can first isolate yourself at home, observe your condition and monitor your body temperature regularly during this period. If there is no other physical discomfort during this period, the possibility of novel coronavirus infection can be generally excluded and the isolation can be released. If you develop a series of symptoms such as difficulty in breathing within 14 days, please go to the hospital as soon as possible.