U.S. Health Secretary Robert F. Kennedy Jr.'s newly reconstituted vaccine advisory panel said during its first meeting on Wednesday that it would study the schedule of childhood and adolescent immunizations and review the use of older vaccines.

FILE PHOTO: U.S. Health and Human Services (HHS) Secretary Robert F. Kennedy Jr. speaks as he attends a press conference with Centers for Medicare and Medicaid Services Administrator Mehmet Oz to discuss health insurance reform, at the Department of Health and Human Services in Washington, D.C., U.S., June 23, 2025. REUTERS/Kevin Mohatt/File Photo

Ahead of the first meeting of newly appointed vaccine advisers to the US Centers for Disease Control and Prevention, lawmakers are sharing fresh concerns about the panel’s membership and last-minute actions that could see Covid-19 and influenza vaccines thrown into question.