Mercy Deployment Military Sealift Command hospital ship USNS Mercy departs Naval Base San Diego, March 23, 2020. Mercy deployed 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. SHARE: Download: Full Size (3.65 MB) Tags: USNS Mercy, Navy, Coronavirus Credit: Navy Petty Officer 1st Class David Mora VIRIN: 200323-N-UV609-2198.JPG Photo Gallery