An FDA advisory committee meeting scheduled next month to decide the composition of next season’s flu vaccines has been canceled without any explanation, Paul Offit, a professor of pediatrics and a panel member,

A meeting of a committee which advises the U.S. Food and Drug Administration on vaccine policy has been canceled, a committee member told Reuters, the second such disruption to a federal vaccine advisory panel since Robert F.

It comes as RFK Jr., a vaccine skeptic who now leads the Department of Health and Human Services, makes moves that could affect vaccination uptake and policy.