By Ahmed Aboulenein, Michael Erman and Julie Steenhuysen WASHINGTON (Reuters) -Health Secretary Robert F. Kennedy Jr. has fired all members sitting on a U.S. Centers for Disease Control and Prevention panel of vaccine experts and is reconstituting the committee,

The U.S. health secretary chose to “retire” members of a committee that makes significant decisions about who receives immunizations, including the vaccines for children.

The Advisory Committee for Immunization practices helps the agency make recommendations on who should get certain vaccines.