All 17 experts recently dismissed from a government vaccine advisory panel published an essay Monday decrying “destabilizing decisions" made by U.S. Health Secretary Robert F. Kennedy Jr. that could lead to more preventable disease spread.

The scientist, Dr. Fiona Havers, told colleagues at the Centers for Disease Control and Prevention on Monday that she no longer had confidence that the COVID and RSV data would be used "objectively or evaluated with appropriate scientific rigor to make evidence-based vaccine policy decisions," according to an email seen by Reuters.

Career officials at the Centers for Disease Control and Prevention responsible for overseeing the agency's committee of outside vaccine experts have been removed from their role in the process, multiple CDC officials tell CBS News.

HHS Secretary Robert F. Kennedy Jr.’s actions in recent months have raised concerns that he is taking a heavy-handed and unilateral approach to vaccine policy in the U.S.

Moderna's shares fell 2.3% in early trading on Friday, on concerns whether a new CDC advisory panel would back the use of the company's respiratory syncytial virus vaccine in a broader age group. The RSV shot,