News Ontario sees highest number of ICU patients since January SHARE ON: Casey Kenny, staff Wednesday, Mar. 31st, 2021 (supplied by Pixabay) It’s a disturbing record in Ontario. There are now 421 COVID-19 patients in intensive care units in Ontario hospitals. That is the highest number since the pandemic began, beating the previous high of 420 in mid-January. Critical Care Services Ontario prepares the internal report for hospitals and health organizations. ***With files from Wendy Gray.