200322-N-ZO368-004 SAN DIEGO (March 22, 2020) Navy reserve component Sailors prepare to embark aboard the Military Sealift Command hospital ship USNS Mercy (T-AH 19) at Naval Base San Diego, March 22, 2020. Mercy is deploying in support of the nation's COVID-19 response efforts and will serve as a referral hospital for non-COVID-19 patients currently admitted to shore-based hospitals. (U.S. Navy photo by Mass Communication Specialist 1st Class Travis S. Alston/Released)