Watch: Ventilators are in high demand for Covid-19 patients. How do they work?
Ventilators are one of the most important tools hospitals have for keeping Covid-19 patients in the most critical condition alive.
Between 21% and 31% of Covid-19 patients in the U.S. have required hospitalization, and 5% to 11% have required intensive care. Officials have not reported how many of these patients developed respiratory distress so severe they needed to be put on a ventilator, but among one group of patients in China, 12% did.
