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U.K. trial tests benefits of giving different COVID-19 vaccines for first, second shots

Name: U.K. trial tests benefits of giving different COVID-19 vaccines for first, second shots
Uploaded: 2021-03-23T07:30:35-0400
Duration: 3 min 11 s
Description: CBS News got exclusive access to a world-first: a clinical trial to determine whether giving different COVID-19 vaccines for the first and second dose works as well as using the same shot twice. Charlie D'Agata spoke to the scientists and the volunteers to learn more.

CBS News got exclusive access to a world-first: a clinical trial to determine whether giving different COVID-19 vaccines for the first and second dose works as well as using the same shot twice. Charlie D'Agata spoke to the scientists and the volunteers to learn more.