Staff Sgt. James Barnett, 779th Medical Operations Squadron medical technician, administers the flu vaccination to Col. Christopher Kenny, Air Force District of Washington deputy chief of the basing division, at Malcolm Grow Medical Center Sept. 2. The 779th Medical Group is expecting to vaccinate over 12,000 installation members during the 2009 flu season. (U.S. Air Force photo/ Staff Sgt. Renae Kleckner)