NEW YORK (AP) — Health Secretary Robert F. Kennedy Jr.'s new vaccine advisory committee meets this week in Atlanta, where votes are expected on changing recommendations for vaccines covering COVID-19, hepatitis B, and chickenpox. Concerns are rising among public health officials about how these changes could affect parent perceptions of vaccines. Experts like Dr. William Schaffner are wary that new questions will be raised, causing confusion. Additionally, a vote restricting funding could hit low-income families hard. Kennedy, previously an antivaccine advocate, recently overhauled the committee with members skeptical about vaccines, further intensifying the debate. If changes are made, vaccines could be less accessible for many children across the U.S. The three vaccines under discussion each have significant implications for public health.