Mercy Preparations Sailors prepare the Military Sealift Command hospital ship USNS Mercy to depart Naval Base San Diego as part of the Defense Department’s COVID-19 response, March 23, 2020. Mercy will serve as a referral hospital for non-COVID-19 patients currently admitted to shore-based hospitals. SHARE: Download: Full Size (2.51 MB) Tags: USNS Mercy, Navy, Coronavirus Credit: Navy Petty Officer 1st Class David Mora VIRIN: 200323-N-UV609-1060A.JPG Photo Gallery