The incubation period of the new coronavirus is usually between 1 and 14 days, with 3 to 7 days in most cases, and may exceed 14 days in a very small number of infected individuals. Elderly people with underlying diseases such as asthma, diabetes, heart disease, etc., have a shorter incubation period accordingly due to reduced body function, while the incubation period may be longer in young adults. If you are in a high-risk group such as a person infected with the novel coronavirus or a close contact of a person with a latent infection, the virus may spread more rapidly and the incubation period may be shortened accordingly. After the incubation period of patients with novel coronavirus infection, the earliest symptoms are mainly fever, dry cough, malaise, and in a few cases, sore throat, muscle pain, abdominal pain, diarrhea and other symptoms. The incubation period is related to the patient’s own physical condition and environment.