U.S. Air Force Senior Airman Victor Petrelli, an aerospace medical technician from the New Jersey Air National Guard's 177th Medical Group, gathers the necessary materials in order to administer a Hepatitis A immunization to an 18-month-old child at the 86th Medical Clinic on Ramstein Air Base, Germany, Aug. 6. Petrelli is in the process of completing his immunization back-up technician training at the clinic. (U.S. Air National Guard photo by Senior Airman Shane S. Karp/Released)