170206-N-YM856-103 PUERTO BARRIOS, Guatemala (Feb. 6, 2017) Hospital Corpsman 1st Class Sean Mckay, assigned to Navy Environmental and Preventative Medicine Unit (NEPMU) 2, explains how a mosquito trap works during Continuing Promise 2017 (CP-17). The exercise is a U.S. Southern Command-sponsored and U.S. Naval Forces Southern Command/U.S. 4th Fleet-conducted deployment to conduct civil-military operations including humanitarian assistance, training engagements, and medical, dental, and veterinary support to Central and South America. (U.S. Navy photo by Petty Officer 2nd Class Brittney Cannady/Released)