SEA OF JAPAN (Nov. 25, 2020) Chief Hospital Corpsman Darsean Sharpe, from Atlanta, sanitizes the vaccine site on a Sailor prior to administering a flu shot in main medical aboard the Arleigh Burke-class guided-missile destroyer USS John S. McCain (DDG 56). McCain is assigned to Destroyer Squadron (DESRON) 15, the Navy’s largest forward-deployed DESRON and the U.S. 7th Fleet’s principal surface force. (U.S. Navy photo by Mass Communication Specialist 2nd Class Markus Castaneda)