Study: Nearly all COVID patients on ventilators died in large NY health system

Overall, about 20% of Covid-19 patients treated at Northwell Health died, and 88% of those placed on ventilators died, according to the study. A ventilator is a device that forces air into the lungs of patients who cannot breathe on their own because of severe pneumonia or acute respiratory distress syndrome.

Other, smaller reports have indicated that patients who need ventilation are unlikely to survive.