INTRODUCTION The surge of SARS-CoV-2-virus infected (COVID-19) patients presenting to New York City (NYC) hospitals quickly overwhelmed and outnumbered the available acute care and intensive care resources in NYC in early March 2020 . Upon the arrival of military medical assets to the Javits Convention Center in NYC, the planned mission to care for non-SARS-CoV-2 patients was immediately changed to manage patients with (SARS-CoV-2) COVID-19 and their comorbid conditions.Healthcare professionals from every branch of the uniformed services, augmented by state and local resources, staffed the Javits New York Medical Station (JNYMS) from April 2020 .

METHODS The data review reported aggregated summary statistics and participant observations collected by N.Y. State and U.S. military officials .

RESULTS During the 28 days of patient intake at the JNYMS , 1,095 SARS-CoV-2-positive patients were transferred from NYC hospitals to the JNYMS . At its peak, the JNYMS accepted 119 patients in a single day, had a maximum census of 453, and had a peak intensive care unit census of 35 . The median length of stay was 4.6 days (interquartile range : 3.1-6.9 days). A total of 103 patients were transferred back to local hospitals, and there were 6 deaths, with an overall mortality rate of 0.6% (95% CI , 0.3-1.2).

DISCUSSION AND

CONCLUSIONS This is the first report of the care provided at the JNYMS . Within 2 weeks, this multi-agency effort was able to mobilize to care for over 1,000 SARS-CoV-2 patients with varying degrees of illness in a 1-month period . This was the largest field hospital mobilization in the U.S. medical history in response to a non-wartime pandemic . Its success with huge patient throughput including disposition and low mortality relieved critical overcrowding and supply deficiencies throughout NYC hospitals . The downstream impact likely saved additional hundreds of lives and reduced stress on the system during this healthcare crisis.