The ship's stated mission is to treat patients who do not have COVID-19, freeing up land-based hospitals to focus on patients with the virus,[1] and originally required a patient to test negative for the coronavirus before boarding, but on 3 April changed its process to no longer requires a negative test and to accept "asymptomatic, screened patients who will be isolated and tested immediately upon arrival."[2] On 3 April, multiple patients with the virus spent the night aboard the ship after they were accidentally transferred to the ship from the Jacob K. Javits Center, where a field hospital was in operation; the patients were transferred back to the Javits Center after testing positive for the virus."[15]