U.S. Health Secretary Robert F. Kennedy’s new vaccine advisory committee is meeting for a second day in a row.

The US Centers for Disease Control and Prevention’s Advisory Committee on Immunization Practices, or ACIP, will gather this week for its second regular meeting of the year, but this won’t be a typical meeting.

A federal vaccine advisory committee plans to review the childhood vaccination schedule and scrutinize vaccines that have been approved for decades, fueling concerns that the panel may consider changes to long-standing vaccine recommendations.