It is unclear how Kennedy's new members, including Dr. Robert Malone, will affect the panel's vaccine recommendations.

The departure is the latest turn after Kennedy fired every one of the 17 panel members earlier this month and replaced them with handpicked advisers.

Robert F. Kennedy Jr.’s revamped vaccine advisory panel has already suffered a setback after one of his handpicked members quit ahead of the group’s first major meeting. Dr. Michael Ross, one of the eight newly appointed panelists,