Recently fired members of a committee that advises the federal government on immunization safety lashed out at Health and Human Services Secretary Robert F. Kennedy Jr., saying that their terminations will limit access to vaccines and put American lives at risk.

Sen. Bernie Sanders (I-VT) is requesting the Senate Committee on Health, Education, Pensions, and Labor to investigate Health and Human Services Secretary Robert F. Kennedy Jr. after he fired all members of a key vaccine panel last week.

The 17 members of the CDC's vaccine advisory committee, who were ousted last week, argued their abrupt dismissal has "left the U.S. vaccine program critically weakened."