Lyn Redwood, who spread debunked claims about vaccines, will be in the CDC's Immunization Safety Office, multiple CDC officials tell CBS News.

The move could shift long-standing practices of how and when children are immunized in the United States.

The Centers for Disease Control and Prevention's vaccine advisory committee wrapped up the first day of its meeting since Health and Human Services Secretary Robert F. Kennedy Jr. dismissed the entire panel and appointed his own hand-selected members.