CDC Says Some May Need Fourth MRNA Shot

CDC Says Some May Need Fourth MRNA Shot

Newsy

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Watch VideoThe CDC says some people might need a fourth shot of the MRNA COVID-19 shot. 

Those are the Pfizer and Moderna vaccines. 

Research showed a booster enhanced the antibody response to the vaccine in certain people with compromised immune systems. 

At this point, the CDC has only authorized a third dose for...

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