A recent study suggests that a single mutation in the COVID-19 variant JN.1 may have enabled it to evade antibodies and spread globally, despite many people being vaccinated and having previous infections. Researchers found that 66 out of 899 antibodies prevented infection by BA.2.86, while only 23 prevented JN.1 infection. The study suggests that a longer amino acid in JN.1's spike protein may have weakened or blocked neutralizing antibodies from interacting with the virus.

Source: https://www.newscientist.com/article/2443341-covid-variant-jn-1-may-have-become-dominant-due-to-just-one-mutation/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home