Senate Democrats say Kennedy has undermined scientific agencies as preventable diseases surge.

The health secretary is poised to oversee the undoing of a vaccine norm that Sen. Bill Cassidy (R., La.) worked to promote.

By Mariam Sunny Dec 4 (Reuters) - Vaccine advisers to Robert F. Kennedy Jr. will vote on whether to scrap a broad recommendation for the hepatitis B vaccine for children on Thursday, leaving the choice to parents in most cases,

Relying on testing to guide vaccination recalls an approach the United States tried in the 1980s and early ’90s that still led to thousands of cases of hepatitis B among children every year.