SAN DIEGO (April 13, 2021) Hospital Corpsman 1st Class Daniel Vilchezarrona explains the COVID-19 vaccination record card in the hangar bay aboard the amphibious assault ship USS Tripoli (LHA 7). Sailors aboard Tripoli volunteered to receive COVID-19 vaccinations as part of the continuation of the first phase of the U.S. Department of Defense COVID-19 vaccination plan. Tripoli is homeported in San Diego. (U.S. Navy photo by Mass Communication Specialist Seaman Maci Sternod)