The preservative thimerosal has been removed from all but a few vaccines, and studies have confirmed no link to neurodevelopmental issues including autism. So public health experts were puzzled when it appeared on the agenda for this week’s meeting of outside vaccine advisers to the US Centers for Disease Control and Prevention.

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

The US Centers for Disease Control and Prevention’s vaccine panel is adding new subcommittees to review the current childhood immunization schedule and examine shots that haven’t been studied in at least seven years,