Older adults and first responders wait in line to receive a COVID-19 vaccine late last month at the Lakes Regional Library in Fort Myers, Fla.

FORT MYERS, FL – DECEMBER 30: Seniors and first responders wait in line to receive a COVID-19 vaccine at the Lakes Regional Library on December 30, 2020 in Fort Myers, Florida. There were 800 doses of vaccine available at the site. (Photo by Octavio Jones/Getty Images)