LANGLEY AIR FORCE BASE, Va. -- Staff Sgt. Lavarous Johnson, 633d Medical Operations Squadron, immunizes Sianni Vernon as her mother, Jacenta, holds her at the Langley Allergy and Immunizations Clinic Aug. 24. The clinic offers all shots needed to fulfill Virginia state requirements for children to attend school and day care programs. (U.S. Air Force photo/Airman 1st Class Jason J. Brown)