Does Omicron get natural immunity after infection? Chinese disease control experts responded

　　China News Service, May 27th, "In fact, the new coronavirus is mutating and evolving, especially the recently popular Omicron variant. In fact, we are still in the process of continuous understanding. After infection with the virus, theoretically it will produce Natural immunity, but I think this is not the choice we should make at the moment." Wang Huaqing, chief expert on immunization planning at the Chinese Center for Disease Control and Prevention, said at a press conference held by the State Council's Joint Prevention and Control Mechanism on the 27th.

　　At the meeting, a reporter asked: There is a saying that "Omicron will acquire natural immunity after infection". Is this statement reasonable?

What is the difference between the immunity obtained after infection with Omicron and the effect of immunity obtained after vaccination?

　　Wang Huaqing said, "The new coronavirus is mutating and evolving, especially the recently popular Omicron variant, which is actually still in the process of constant understanding. After infection with the virus, in theory, natural immunity will occur, but this is not The choices we have to make now.”

　　Wang Huaqing said that on the one hand, the Omicron variant can also lead to severe illness and death, especially among chronically ill people and the elderly. Dangerous choice.

Second, since the application of the new coronavirus vaccine, its effect on preventing severe illness and preventing death is still very clear.

In addition, the Omicron variant has undergone a considerable mutation, and in this case, there is still great uncertainty about immunity from natural infection.

　　Wang Huaqing introduced that there are two recent studies, both published in the world's top medical journals, one in the "Nature" medical journal, and the other in the "New England" journal. The conclusions of these two studies what is it then?

The neutralizing antibody level induced by the Omicron variant in the unvaccinated population was lower than that in the vaccinated population, the induced antibody was not broad enough, and the protection against infection by other variant strains was limited.