The incubation period after infection with the omicron strain of the new coronavirus is related to the body’s immunity and viral load, with most incubation periods ranging from 3 to 7 days, and in some cases up to 14 to 21 days. The Omicron strain is one of the mutated strains of the new coronavirus, and the incubation period is 3-7 days in most cases. If the infected viral load is high, the degree of infection will be heavier, and the incubation period will be shortened accordingly, but in some cases, it can be as long as 14-21 days. In addition, the incubation period will be shorter for people with underlying diseases, the elderly, and other weaker people. New Coronavirus Omicron strain is characterized by strong transmissibility, and mainly shows symptoms similar to upper respiratory tract infections, such as fever, accompanied by dry cough, sore throat, fatigue, nasal congestion, etc. A small number of people may experience nausea, vomiting, diarrhea symptoms, so once the suspicious symptoms occur, it should be reported in time, isolation and medical care, and the sooner the treatment is given, the lower the risk is.