U.S. Air Force Col. John J. Allen Jr., 633rd Air Base Wing commander, receives a flu shot from Senior Airman Lavette Atkins, 633rd Medical Operations Squadron immunizations technician at Langley Air Force Base, Va., Oct. 23, 2014. Vaccination venues for active-duty military members and beneficiaries are being held until Oct. 31. For specific details, call the Immunizations clinic at 764-6985. (U.S. Air Force photo by Staff Sgt. Stephanie R. Plichta/Released)