Biden-era policies rescinded by Donald Trump could signal a significant shake-up in Medicare and Medicaid drug price reforms.

On Wednesday, Secretary of Health and Human Services Alex Azar used his emergency powers to override the restrictions that 22 states place on pharmacists vaccinating children over age 3.

HHS Secretary Alex Azar listens at right. (AP Photo/Susan Walsh, file) President Donald Trump speaks to members of the press as Director Robert Redfield, right, looks at the headquarters of the Centers for Disease Control and Prevention in Atlanta ...