The Centers for Disease Control and Prevention's vaccine advisory committee is set to meet for the first time since Health and Human Services Secretary Robert F. Kennedy Jr. dismissed the entire panel and appointed his own hand-selected members.

The call for the delay marks one of the first time Sen. Bill Cassidy has directly asked Trump’s Department of Health and Human Services to alter how it’s handling vaccine policy.

A former leader of the anti-vaccine group Children’s Health Defense will present this week on thimerosal in flu vaccines at a meeting of the newly appointed vaccine advisers to the US Centers for Disease Control and Prevention,