Sample Analysis Navy Petty Officer 1st Class Ma Charissa Caayao confirms white and red blood cell counts on a test sample aboard the hospital ship USNS Mercy in the Pacific Ocean, March 26, 2020. The Mercy deployed to serve as a referral hospital for non-COVID-19 patients currently admitted to shore-based hospitals, allowing those hospitals to focus their efforts on COVID-19 cases. SHARE IMAGE: Download Image: Full Size (2.18 MB) Tags: navy Photo By: Navy Petty Officer 2nd Class Erwin Jacob Miciano VIRIN: 200326-N-VI515-1005Y.JPG Photo Gallery