At the first meeting of a controversial new group of vaccine advisers to the US Centers for Disease Control and Prevention, the committee announced new plans to study established vaccine guidelines.

The chair of Robert F. Kennedy Jr.'s newly constituted vaccine advisory committee announced in his first meeting that the panel will revisit the longstanding practice of vaccinating all babies against hepatitis B,

The sudden dismissal of trusted vaccine advisors has sparked concern from lawmakers across party lines that RFK Jr.’s decision could reverse decades of progress in disease prevention and public health.