ATLANTIC OCEAN (Oct. 18, 2021) Hospital Corpsman 2nd Class Myeong Seo, from San Diego, administers a flu vaccine to a Sailor aboard the Nimitz-class aircraft carrier USS Harry S. Truman (CVN 75). Harry S. Truman is operating in the Atlantic Ocean in support of naval operations to maintain maritime stability and security in order to ensure access, deter aggression and defend U.S., allied and partner interests. (U.S. Navy P=hoto by Airman Marvin Gabriel)