Secondary infections may occur after omicron is cured. Neocoronavirus vaccinees or recovered patients can be infected or re-infected with Omicron. For a short period of time after being cured of the Neocoronavirus variant strain of Omicron, the patient has enough antibodies in his body and is not susceptible to re-infection with Neocoronavirus in this case. However, with the prolongation of time, the antibodies in the body will gradually decrease, after which effective prevention is not guaranteed, so there is still a possibility of secondary infection. Since the new coronavirus pneumonia is highly contagious and constantly mutating, it is possible to re-infect the organism in a new form, so even after the new coronavirus is cured, it should not be taken lightly and needs to be protected. Avoid attending get-togethers during an outbreak. Frequent opening of windows and ventilation can maintain indoor air circulation. Disinfect your home on a daily basis. Practice personal hygiene and wash your hands frequently. Wear a good mask when you go out and avoid close contact with people with fever and cough.