A top vaccine expert and pediatric doctor is cautioning parents of healthy young people to hold off getting the new COVID booster shot, saying it can carry risks and its efficacy hasn't yet been proven. Dr. Paul Offit, director of the Vaccine Education Center at the Children's Hospital of Philadelphia and a member of the Food and Drug Administration's Vaccine Advisory Committee, said he's not fully sold on the benefits of a third shot outweighing the harm.'Who really benefits from another dose?' Offit said on .
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