Robert F. Kennedy Jr.’s plan for America’s vaccines is coming into focus, with his revamped immunization advisory panel set to discuss the use of measles shots in kids next week and vote on an ingredient that’s been wrongly linked to autism.

Robert F. Kennedy Jr. is considering asking a key government vaccine advisory panel to examine shots that contain aluminum ingredients, which could impact at least two dozen vaccines on the market, a source familiar with the matter said.

It is the panel’s first meeting with Kennedy’s newly appointed members, many of whom are well-known vaccine critics.