Senior Airman Allyson Tilghman, 455th Expeditionary Medical Operations Squadron immunization technician, measures vaccine prior to giving it to a patient at the Craig Joint Theater Hospital, Bagram Air Field, Afghanistan, May 5, 2011. The immunization clinic handles an average of 500 patients per month. Airman Tilghman is deployed from Dover Air Force Base, Del., and a native of Virginia Beach, Va.