190723-N-BV658-2136 PUNTARENAS, Costa Rica (July 23, 2019) Lt Cmdr. Michael Krok, a U.S. Public Health Service doctor assigned to the hospital ship USNS Comfort (T-AH 20), examines a patient at a temporary medical treatment site. 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 strained by an increase in Venezuelan migrants. (U.S. Navy photo by Mass Communication Specialist 3rd Class Kryzentia Richards)