Flu shot
PETERSON AIR FORCE BASE, Colo. – Staff Sgt. Amber Olszen, 21st Medical Group, gives Col. John Shaw, 21st Space Wing commander, his annual flu vaccine Sept. 13. The flu vaccine is an annual requirement for all military personnel. The 21st MDG had a flu vaccination line from 6 a.m.-7 p.m. Sept. 17 at the RP Lee Youth Center. (U.S. Air Force photo/Rob Bussard)