From the Introduction: "The emergence of COVID-19 [coronavirus disease 2019] has presented significant challenges for the State of Maine. After detecting its first case of COVID-19 in March 2020, Maine activated its entire public health infrastructure to quickly identify, investigate, and isolate COVID-19 cases. While responding to the emerging virus through testing, personal protective equipment (PPE) distribution, and contact tracing, Maine also began its planning for the eventual approval of a vaccine (or vaccines) for the prevention of COVID-19. Maine is committed to a COVID-19 vaccine planning and implementation process that furnishes the vaccine to Maine people in a timely, equitable fashion. In general, Maine will use three principles to guide its approach to COVID-19 vaccination: Equity, Accessibility, and Flexibility."
Centers for Disease Control and Prevention: https://www.cdc.gov/