190918-N-DZ642-1056 ST. GEORGE'S, Grenada (Sept. 18, 2019) Hospital Corpsman 1st Class Michael Matthews, right, and Hospital Corpsman 2nd Class Rudy Navarro, assigned to the hospital ship USNS Comfort (T-AH 20), give Grenadian children oral hygiene tips at a temporary medical treatment site in St. George's, Grenada, Sept. 18, 2019. Comfort is working with health and government partners in Central America, South America, and the Caribbean to provide care on the ship and at land-based medical sites, helping to relieve pressure on national medical systems, including those strained by an increase in cross-border migrants. (U.S. Navy photo by Mass Communication Specialist 2nd Class Bobby J Siens/Released)