ARNOLD AIR FORCE BASE, Tenn. --   Darla Sain, a registered nurse with the Tullahoma office of the Coffee County Health Department, administers a flu vaccine to Col. Linc Bonner, chief of the Test Division, Oct. 20, 2021, during a flu vaccine clinic held at Arnold Air Force Base, Tenn. The clinic was conducted by the Coffee County Health Department with support from the Arnold AFB Medical Aid Station for individuals with access to the base. During the clinic, 141 individuals were vaccinated. (U.S. Air Force photo by Jill Pickett)