States' pharmacist immunization authority and the impact on adult influenza vaccination rates.

Background: Pharmacist-provided vaccinations are cost effective, readily accessible, and support the efforts of our nation's public health goals. Pharmacist authority to administer vaccines varies state by state, and these authorities may have an impact on state influenza vaccination rates.

Objective: To analyze the impact of varied state pharmacist immunization authorities on adult and older adult influenza vaccination rates for the 2018-2019 influenza season.