579th Medical Group
Army Sgt. Maj. Michael Mumford of the plans division of the National Guard Bureau in Arlington, Va., receives a seasonal flu shot from Staff Sgt. Shane Harper of the 579th Medical Group based during a vaccination campaign at the National Guard Bureau Oct. 23, 2009, at Bolling Air Force Base, D.C. The shot is mandatory for active-duty servicemembers. (U.S. Army photo/Staff Sgt. Jim Greenhill)