The novel coronavirus is infectious during the incubation period. Therefore, proper protection is needed. If you develop typical symptoms of novel coronavirus such as fever, malaise, dry cough, or digestive discomfort, be vigilant and consciously isolate yourself to prevent possible transmission of novel coronavirus to others around you. If necessary, seek prompt medical attention. Some patients do not show any symptoms during the incubation period and are mobile infectious agents that can infect the surrounding population.