https://www.siliconvalley.com/2021/02/25/coronavirus-these-maps-help-show-how-the-vaccine-rollout-is-going-in-every-u-s-state/

Historical trends show there are different challenges to getting shots in arms, depending on where people live.

On Feb. 24,  Surgo Ventures unveiled a data tool: The U.S. COVID-19 Vaccine Coverage Index to track major barriers in getting people vaccinated.