THORNTON, CO - MARCH 06: Adams 12 Five Star Schools District RN Tiffany Karschamroon draws a dose from a vial of the Johnson & Johnson COVID-19 vaccine, the newest vaccine approved by the U.S. FDA for emergency use, at an event put on by the Thornton Fire Department on March 6, 2021 in Thornton, Colorado. Colorado entered COVID-19 vaccination Phase 1B.3 on Friday, allowing essential grocery and agriculture workers, people over the age of 60 and people with two or more high-risk conditions to receive a vaccine. (Photo by Michael Ciaglo/Getty Images)
