A federal judge on Monday blocked major parts of Secretary of Health and Human Services Robert F. Kennedy, Jr.’s broad overhaul of U.S. vaccine policy in a decision that sides with six medical groups,...

A federal judge blocked key parts of Health Secretary Robert F. Kennedy Jr.'s effort to reshape U.S. vaccine policy, including a move to reduce the number of immunizations routinely ​recommended for c...

The ruling also reversed, at least for the time being, all decisions made by the panelists that Mr. Kennedy appointed to the Advisory Committee for Immunization Practices, which makes recommendations ...