CAMP LEMONNIER, Djibouti (April 23, 2021) Hospital Corpsman 3rd Class Debrecia Thomas, from Jacksonville, Fla., prepares wells with swab samples for COVID-19 testing at the Naval Medical Research Unit (NAMRU) at Camp Lemonnier on April 23, 2021. In support of joint U.S. warfighters, the NAMRU conducts research and surveillance of infectious diseases, environment health concerns and epidemiology and behavioral sciences, to support military personnel deployed to Africa, the Middle East, and Southwest Asia. (U.S. Navy photo by Mass Communication Specialist 2nd Class Natalia Murillo)