During a COVID-19 update on Thursday, Ontario’s chief medical officer of health Dr. Kieran Moore said the province would cut the isolation requirement for symptomatic individuals who received a positive COVID-19 diagnoses down to five days from the earlier 10-day quarantine period. He said the five-day period would start from the onset of symptoms, but added that those who live or work in high-risk settings would still be required to isolate for 10 days.