Will COVID-19 vaccines work on the new coronavirus variant?

Experts say current COVID-19 vaccines will likely work on the new variant of the coronavirus in the United Kingdom, but are working to confirm that

Experts believe so, but they're working to confirm that.

Dr. Anthony Fauci, the top U.S. infectious disease expert, said data coming from Britain indicates the vaccines still will block the virus. But the U.S. also will do tests to be sure.

Viruses often undergo small changes as they reproduce and move through a population. In fact, the slight modifications are how scientists track the spread of a virus from one place to another.

But if a virus mutates significantly enough, one worry is that current vaccines might no longer offer as much protection. And although that's a possibility to watch for over time with the coronavirus, experts say they don't believe it will be the case with the variant in the U.K.

“My expectation is, this will not be a problem,” said Moncef Slaoui, the chief science adviser for the U.S. government’s COVID-19 vaccine push.

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