Omicronjon infection is mostly detectable as positive around 3 to 7 days after infection, and in a few cases the incubation period may be prolonged. New coronavirus omicron has a certain incubation period, the incubation period is 1 to 14 days, but most patients can be detected positive for omicron nucleic acid about 3 to 7 days after infection. However, most patients will test positive for Omicron within 3 to 7 days after infection. Some patients may have a longer incubation period due to their special physical condition. The transmission of omicron is relatively strong, so patients with a history of close contact or high-risk contact with these patients should be tested for the nucleic acid of the new coronavirus several times to determine whether they are infected, and if the test is negative during the incubation period, it is still necessary to repeat the test. Once the diagnosis of Omicron Neocoronavirus infection is confirmed, isolation and treatment should be carried out, and contacts should also be isolated and treated.