(left) Staff Sgt. Talisa Bell and (right) Staff Sgt. Abigail Johannesson, 628th Medical Operations Squadron immunizations technicians, vaccinate Chief Master Sgt. Mark Bronson, 628th Air Base Wing command chief and Command Master Chief Joseph Gardner at the headquarters building on Joint Base Charleston - Air Base, S.C., Nov. 3, 2015. Receiving an annual flu shot satisfies this component of their Individual Mobility Readiness requirements.(U.S. Air Force photo/Tech. Sgt. Renae Pittman)

(left) Chief Master Sgt. Mark Bronson, 628th Air Base Wing command chief and Command Master Chief Joseph Gardner show off their Looney Toons band aids after receiving the flu vaccination at Joint Base Charleston, S.C., Nov. 3, 2015. (U.S. Air Force photo/Tech. Sgt. Renae Pittman)