Xinhua News Agency, Beijing, September 30 (Reporter Ying Zhang) Can patients who have been infected with the virus in the early stage of the new crown epidemic can resist secondary infection by the mutant strain? An American research team conducted experiments using rhesus monkeys to show that the natural immunity induced by the strains isolated in the early stage of the new crown epidemic has a certain effect on preventing the infection of alpha and beta mutant strains, but it is not enough to completely prevent these two mutant strains.
Researchers from the American Beth Israel Deaconess Medical Center and other institutions recently reported in the American Journal of Science Translational Medicine that they first used the strain isolated at the beginning of the new crown epidemic (code named WA1/2020) to infect some The rhesus monkeys then divide these infected rhesus monkeys into 3 groups on the 35th day and accept the "challenge" of the WA1/2020 strain, the alpha strain or the beta strain
The results show that the natural immunity induced by the WA1/2020 strain in rhesus monkeys can provide strong protection against the “challenge” of the strain again
The researchers said that this result provides a reference for understanding how the mutated strain of the new coronavirus affects the therapeutic effect of antibody therapy
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