The coronavirus epidemic in 2019, the first outbreak occurred in Wuhan, Hubei Province, the People's Republic of China in 2019. The source of the transmitted virus has not been determined, and the route of transmission and the extent of its spread are not yet clear. Experts organized by the World Health Organization and the National Health Committee of the People's Republic of China after analyzing in mid-to-late January published a belief that the virus can be transmitted from person to person with a maximum of fourteen days, the shortest one-day incubation period, and the incubation period is also contagious. Wish everybody health!