"March 29, 2021: A report by Ontario’s COVID-19 Science Advisory Table stated that 67% of all COVID-19 cases in Ontario were due to variants of concern (VOC). Cases of VOC were associated with increased risk of hospitalization (63%), intensive care unit admission (103%), and death (56%). The report also found 90% of VOC cases in Ontario were from the B.1.1.7 variant (Tuite et al., 2021).
https://nccid.ca/covid-19-variants/
https://nccid.ca/covid-19-variants/