KFF Health News Sep 16 2025 A key federal vaccine advisory panel whose members were recently replaced by Health and Human Services Secretary Robert F. Kennedy Jr. is expected to vote to recommend delaying until age 4 the hepatitis B vaccine that's currently given to newborns, according to two former senior Centers for Disease Control and Prevention officials. "There is going to likely be a discussion about hepatitis B vaccine, very specifically trying to dislodge the birth dose of hepatitis B