After a judge issued an injunction halting controversial anti-vaccine changes at the CDC, the Trump administration is fighting back. Health Secretary Robert F. Kennedy's plans to fill the vaccine advisory panel with dubious allies and revise childhood vaccination recommendations have been temporarily halted. US District Judge Brian Murphy ruled that these actions were illegal, citing unqualified advisors and violations of federal procedures.

The ruling stems from a lawsuit brought by the American Academy of Pediatrics (AAP), who argue that Kennedy's changes would be unreviewable if left unchecked. Prior to the injunction, government lawyers claimed his authority allowed him to advise injecting measles virus rather than a vaccine – an assertion Murphy rejected.

This legal battle has frozen key meetings of the CDC’s Advisory Committee on Immunization Practices (ACIP). The next scheduled meeting in late June remains uncertain as no agenda is set. Meanwhile, the public waits for clarity and stability in their vaccination schedules.