The vaccine machine
SPANGDAHLEM AIR BASE, Germany – U.S. Air Force SSgt. Sarah Ellis, 52nd Medical Operations Squadron NCO in charge of Allergy and Immunizations from Mount Hood Ore., gives a vaccine to Carrie Driver, from Townsend, Mont., Apr. 2, 2013. Vaccines are used as a preventative measure for anything from allergies to shingles. (U.S. Air Force photo by Airmen 1st Class Kyle Gese/Released)