US Health and Human Services Secretary Robert F. Kennedy Jr. announced the revocation of the CDC’s recommendation for COVID-19 vaccination for healthy children and pregnant women, raising concerns among experts. Joined by FDA Commissioner Marty Makary and NIH Director Jay Bhattacharya, Kennedy’s unclear messaging about the recommendations caused confusion, especially regarding whether it pertains to first vaccinations or boosters. Experts argue the low rates of serious COVID-19 cases in children might justify the change, while others warn it could hinder vaccination access and increase preventable illnesses.