COVID-19 cases on Thursday, it also marked a pivotal new milestone in its 15-month pandemic fight: cumulatively more than half a million residents, 502,171, have tested positive for the virus.When COVID-19 was declared a global pandemic in March 2020, Ontario’s first 100,000 cumulative cases were recorded on Nov.
20, then 200,000 cases on Jan. 6, then 300,000 cases on Feb. 28, and 400,000 cases on April 15.The last 100,000 cases to today’s date took just shy of one month (28 days) to reach as the province grappled with a third wave that saw record cases and hospitalizations.