For people who have been infected with omicron, there is still a risk of re-infection. During the current epidemic of the new coronavirus pneumonia, the omicron strain generally refers to a mutated strain of the new coronavirus. The omicron strain is characterized by a high number of mutations in the viral proteins, which makes it highly contagious, widespread and difficult to cure. The State Council’s Joint Prevention and Control Mechanism (JPCM) press release states that if a person is infected with the Mekong strain, even after recovery and without taking any protective measures, there is still a chance of being re-infected if they come into contact with the source of the infection again, mainly because of its complex and varied mutation sites. Therefore, in the face of constant mutation of the new coronavirus we can not take it lightly, even for the recovery of the patient’s body there is a certain amount of antibodies also need to do a good job in daily life protection measures, the correct scientific wear masks, pay attention to personal hygiene, timely ventilation. Avoid entering areas where people gather and the air does not circulate, so as not to increase the risk of infection, causing certain harm to their health. [Tip] This article refers to the “new coronavirus pneumonia, new coronavirus pneumonia”, etc., has been December 26, 2022, the National Health Commission issued a notice to change the name to “new coronavirus infection”.