We know vaccines are working against new COVID variants. Now scientists are starting to understand why.


By Dr. Onyema Okolo
(Brendan Mcdermid/Reuters) A commuter receives a shot of the Johnson & Johnson vaccine for COVID-19 during the opening of MTA's public vaccination program at a subway station in the Brooklyn borough of New York, May 12, 2021.

Since the emergence of new COVID-19 variants, experts have worried that the virus may have developed mutations allowing it to outmaneuver existing vaccines.

Early laboratory studies proved worrisome, showing vaccines seemed to produce far fewer virus-fighting antibodies against some of the newer variants. But real-world experience didn't match those concerns -- people seemed to develop good protection, even when exposed to new variants.

Now, after months of research, vaccine experts across the globe are learning that vaccines still mostly work -- even when those antibodies fail to show up in great numbers -- thanks to other crucial parts of the body's immune system.

Publish : 2021-06-10 19:59:00

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