Mercy Prep Navy reservists prepare to board the hospital ship USNS Mercy at Naval Base San Diego, March 22, 2020. The Mercy is deploying to support the nation's COVID-19 response and will serve as a referral hospital for non-COVID-19 patients now in shore-based hospitals. SHARE IMAGE: Download Image: Full Size (0.37 MB) Tags: Navy Photo By: Navy Petty Officer 1st Class Travis S. Alston VIRIN: 200322-N-ZO368-004C.JPG Photo Gallery