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Scientists set out to find if mixing-and-matching COVID vaccines is safe

Posted at 7:36 AM, Feb 04, 2021
and last updated 2021-02-04 11:06:12-05

Researchers are on a new mission to see if mixing and matching coronavirus vaccines is okay.

British scientists are launching the study today to see if this impacts the effectiveness or if there's any adverse side effects.

As of right now, guidelines in both Britain and the U.S. say the only time vaccines should be mixed is if it's unknown what was given for the first shot.

Or if the same vaccine isn't available for the second dose.