In the first year of President Donald Trump's second term, Robert F. Kennedy Jr. as HHS Secretary led significant changes in U.S. health policy[1]. He fired all 17 members of the CDC's federal advisory committee responsible for vaccine recommendations and replaced them with new members[3][6]. The committee unanimously eliminated the recommendation of annual covid-19 vaccination for all Americans six months of age and older and replaced it with shared clinical decision-making with a physician[1]. It postponed a vote on delaying hepatitis B vaccination at birth and is considering a Danish model with fewer vaccines for children[1][3]. Kennedy withdrew support for widespread administration of covid-19 vaccines, although he maintained insurance coverage[1]. He cut $500 million in funding for mRNA vaccine development[6]. He plans to discover the origins of autism by September[9]. Established the Make America Healthy Again commission to redefine health policy priorities[2].