The immune response following Covid-19 infection or vaccination could last for years. Whether it protects against viral variants is another story.
Infection and inoculation both elicit an immune response against Covid-19 that lasts for months and possibly years, a growing body of research shows, but the power of vaccines against known variants make the shots critical to containing the virus.can partially evade the immune response from prior infection and vaccination, recent research shows.
Full vaccination still appears to offer solid protection against them.the Delta variant takes hold in the U.S.“There will be pockets of individuals, sometimes entire towns and cities, that do not have enough immunity through vaccination or prior infection to prevent cases from growing into local surges,” said Samuel Scarpino, an assistant professor at Northeastern University and director of the Emergent Epidemics Lab.
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