TORONTO At Humber River Hospital in Toronto, Ont., the intensive care unit is as stretched as the staff managing the COVID-19 patients filling their beds. âUnfortunately, those patients are deteriorating quickly, in many cases needing ICU resources. So our ICU is in surge capacity almost every day,â said Dr. Tasleem Nimjee, the director of Medical Innovation at Humber River and an emergency physician. As COVID-19 hospitalizations in Ontario continue to rise in tandem with record numbers of daily new cases, hospitals in the hardest hit regions are facing increasingly full ICUs, with Ornge, Canadaâs largest air ambulance fleet, transferring more patients than ever from one busy ICU to a less busy one to ease the strain on overburdened facilities.