A federal judge in Boston has blocked federal health officials from cutting the number of vaccines recommended for every child, and says U.S. Health Secretary Robert F. Kennedy Jr. likely violated federal procedures in revamping a key vaccine advisory committee. The decision Monday halts an order by Kennedy to end broad recommendations for all children to be vaccinated against flu, rotavirus, hepatitis A, hepatitis B, some forms of meningitis and RSV. It also stopped a meeting of a Kennedy-appointed vaccine advisory committee, which was set to convene this week in Atlanta. Federal health officials indicated they planned to appeal.