A new study reportedly suggests the COVID-19 vaccines from Pfizer and Moderna could provide protection for "years."
As The New York Times reports, scientists in a new study sought to determine whether "vaccination alone" will provide long-lasting protection against COVID-19 after research suggested the vaccines may offer years of protection for those who were previously infected with the coronavirus. The study consisted of 41 people who received two doses of the Pfizer vaccine, and the researchers extracted samples from lymph nodes of 14 participants. They found that 15 weeks after the first dose, "the number of memory cells that recognized the coronavirus had not declined," the Times writes.
"The fact that the reactions continued for almost four months after vaccination — that's a very, very good sign," Washington University in St. Louis immunologist Ali Ellebedy, who led the study, told the Times.
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This suggested, the Times writes, that the Pfizer and Moderna vaccines could "protect against the coronavirus for years," or "at least, against the existing coronavirus variants." The report notes that even if that's the case, COVID-19 vaccine boosters might still be necessary for some, including older adults and those with weak immune systems. But University of Arizona immunologist Deepta Bhattacharya told the Times, "Anything that would actually require a booster would be variant-based, not based on waning of immunity. I just don't see that happening." Read more at The New York Times.
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