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Three Studies, One Result: Vaccines point the way out of the pandemic
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Last Updated: Jun 29, 2021, 10:08 AM IST
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Most people immunized with the mRNA vaccines may not need boosters, one study found, so long as the virus and its variants do not evolve much beyond their current forms which is not guaranteed. Mix-and-match vaccination shows promise, a second study found, and booster shots of one widely used vaccine, if they are required, greatly enhance immunity, according to a third report.
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Three scientific studies released Monday offered fresh evidence that widely used vaccines will continue to protect people against the coronavirus for long periods, possibly for years, and can be adapted to fortify the immune system still further if needed.
By Bill Galluccio
Photo: Getty Images
A new study suggests that both the Pfizer and Moderna vaccines are likely to provide long-lasting immunity to COVID-19. The study, which was conducted by researchers from Washington University in St. Louis and published in the journal
Nature, found that people who were fully vaccinated still had a robust immune response nearly four months later.
The researchers were looking at the germinal center, a specialized structure that forms in the lymph nodes following infection or vaccination. The structure trains B cells to fight off infections and possible variants. Typically, the germinal center slows down several weeks after vaccination, but the researchers found that 15 weeks later, the structure was still highly active.
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Three scientific studies released Monday offered fresh evidence that widely used vaccines will continue to protect people against the coronavirus for long periods, possibly for years, and can be adapted to fortify the immune system still further if needed.
Most people immunized with the mRNA vaccines may not need boosters, one study found, so long as the virus and its variants do not evolve much beyond their current forms which is not guaranteed. Mix-and-match vaccination shows promise, a second study found, and booster shots of one widely used vaccine, if they are required, greatly enhance immunity, according to a third report.
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