A retired senior couple support family by babysitting. Three young children sit on their grandparents' laps. The group is reading a book together.

Arkansas serves as an example of the potential cost savings states could realize through effective implementation and promotion of the new requirements. Arkansas has provided adults with comprehensive vaccine coverage since it authorized Medicaid expansion in 2014.

As a result, the state eliminated coverage and cost barriers to adult vaccination, including the Shingles, Tdap, Hep B, and Pneumococcal vaccines.

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