U.S. Army Sgt. Eric Penner administers the flu vaccine to a member of Joint Task Force-Bravo, Soto Cano Air Base, Honduras, Oct. 27, 2013. Joint Task Force-Bravo's Medical Element (MEDEL) is providing the flu vaccine to all members of the task force in order to prevent the spread of the flu virus. (U.S. Air Force photo by Capt. Zach Anderson)