A federal judge has blocked Health Secretary Robert F. Kennedy Jr.'s proposed changes to vaccine policies, dealing a significant setback to the Trump administration's "Make America Healthy Again" initiative.

The court ruling temporarily halts Kennedy's planned overhaul of the nation's vaccination schedule, leaving current vaccine policies in place while legal challenges proceed. The decision comes amid broader scrutiny of Kennedy's approach to public health policy since taking office.

The Justice Department has not yet filed an appeal of the federal court's decision, according to reports, and may ultimately choose not to challenge the ruling. This uncertainty leaves the timeline for any potential vaccine policy changes unclear.

The blocked policies would have represented a major shift in how vaccines are regulated and administered nationwide. Kennedy, a longtime vaccine skeptic, has advocated for significant changes to federal health policies since his confirmation as Health Secretary.

The legal challenge reflects ongoing tensions between the administration's health policy agenda and existing federal regulations governing vaccine safety and distribution. The court's intervention puts the proposed changes on hold pending further legal proceedings.