200422-N-CH038-1121 APRA HARBOR, Guam (April 22, 2020) U.S. Sailors, assigned to Naval Hospital Guam and the Navy and Marine Corps Public Health Center, collect surveys, nasal swabs and blood samples from U.S. Sailors, assigned to the aircraft carrier USS Theodore Roosevelt (CVN 71), as part of a public health outbreak investigation April 22, 2020. This specific outbreak investigation is expected to provide a better-informed understanding of this outbreak and guide decision making for the crew. Upon arriving in Guam March 27, Theodore Roosevelt established an Emergency Command Center, initiated a roving and deep cleaning team, and continually educated the crew on social distancing and proper protective procedures and behaviors, to assist the crew in mitigating and controlling the spread of COVID. Theodore Roosevelt is in Guam for a scheduled port visit for resupply and crew rest during their scheduled deployment to the Indo-Pacific. (U.S. Navy photo by Mass Communication Specialist 1st Class Chris Liaghat/Released)