Fiona Havers, who oversees CDC respiratory virus data, told colleagues she no longer had confidence the data would be used objectively to set vaccine policy.

Health Secretary Robert F. Kennedy Jr. announced last week that he had removed every member of an independent panel key to vaccine policy and access in America. After removing the 17 members of the panel, Kennedy announced eight new names, many of whom have been skeptical of vaccines.

Robert F. Kennedy Jr., secretary of health and human services, appointed eight new members of an expert panel that advises the federal government on immunization policy, including several vocal vaccine critics and one who identifies as an “anti-vaxxer.