There is no research data to detect novel coronaviruses in the incubation period. The incubation period of novel coronaviruses is usually 3-7 days, with a maximum of 24 days, and they remain infectious during the incubation period. Contact with infected patients or patients in the incubation period can lead to infection, so it is recommended to isolate yourself at home, stay away from home, and closely monitor your health. If symptoms such as fever, weakness, dry cough, difficulty in breathing, headache and chest tightness occur, it is recommended to go to the infectious disease department of the hospital for examination in a timely manner.