Immunity after infection with the new coronavirus or for at least 6 months

BEIJING, Jan. 19 (Xinhua Sun Zifa) infected with the new coronavirus (SARS-CoV-2), the body's immune system how to "remember" the new coronavirus, how long can be maintained and other issues have attracted much attention. Immunity from infection with the new coronavirus may last at least six months, according to a new immunological research paper published online in nature, an internationally renowned academic journal.
The study analyzed 87 people who had been infected with the new coronavirus and found that their levels of specific memory B cells (immune cells left in the body after infection) remained unchanged throughout the study period, and that the re-infection of the new coronavirus rapidly proliferated and produced antibodies. The results suggest that individuals infected with the new coronavirus may be able to respond quickly and effectively when they are exposed to the virus again.
the paper, the body's immune system produces antibodies when infected, which specifically neutrally infect the original. Human antibodies against the new coronavirus have been shown to prevent infection in animal models. Levels of these antibodies may decrease over time, but memory B cells, as they are called, can "remember" the infectious original, inducing the immune system to produce the same antibodies when re-infected.
paper's co-author, Michel Nussenzweig of Rockefeller University in the United States, and colleagues assessed the conditions of 87 patients diagnosed with neocosm pneumonia (COVID-19) 1.3 and 6.2 months after contracting the new coronavirus. They found that while the activity of the meso-antibody decreased over time, the number of memory B cells did not change. In addition, the authors have shown that these cells produce more powerful antibodies than the original antibodies and are more resistant to mutations in the prickly proteins that help the virus enter the cells.
these observations and studies show that memory B cells have the ability to evolve with the presence of a small number of persistent viral antigens (small proteins of the virus that can be recognized by the immune system). The authors conclude that the continued presence and evolution of memory B cells suggest that in the event of a new coronavirus re-infection, the human body may be able to quickly produce powerful virus-mediated antibodies.