200421-N-EV253-1104 NEW YORK (April 21, 2020) Lt. Rebekah Johnson, head of the laboratory department and officer in charge in the blood bank, uses a centrifuge to process a blood sample aboard the hospital ship USNS Comfort (T-AH 20). Comfort cares for critical and non critical patients without regard to their COVID-19 status. Comfort is working with Javits New York Medical Station as an integrated system to relieve the New York City medical system, in support of U.S. Northern Command's Defense Support of Civil Authorities as a response to the COVID-19 pandemic. (U.S. Navy photo by Mass Communication Specialist 2nd Class Sara Eshleman/Released)