The health ministry said seven of the deaths occurred in the last 30 days and another three occurred before that period.
One death involved a resident of long-term care.
There have been 49 deaths in the last seven days, 342 in the last 30 days and a total of 13,314.
Hospitals reported 549 patients who tested positive for COVID-19, up 27 from Wednesday but down 121 from that point last week.
Of those, 118 were in intensive care, four more than on Wednesday but one down from that point last week.
Forty-four patients were ventilated, the lowest total COVID-19 ventilated population in the province since October 19, 2020.
On Wednesday, the General Practitioner Director of Health Dr. Kieran Moore said the mandate for public transport and hospitals will expire on June 11.
Ontario first introduced indoor mask command on October 2, 2020.
Several hospitals said they would continue to require masks after that date.
UHN Infectious Diseases Specialist Dr. Isaac Bogoch said the public should understand that there may be a future reintroduction of mask rules if conditions worsen, especially this autumn.
“There will be COVID-19 peaks and valleys, we expect to see an increase in cases in the fall and winter and you can expect the recommendations to change at a time when other regulations may require people to put masks back,” he told CP24.
The positive trend in Ontario continues, says the Scientific Advisory Board, citing wastewater monitoring data showing a reduction in the viral signal in all parts of the province.
Of the 907 cases confirmed on Thursday by PCR, 87 were unvaccinated or partially vaccinated, 141 were two people with two doses of COVID-19, 541 were three or more doses and the vaccination status of another 138 was unknown.
Provincial laboratories processed 9,777 test samples over the past 24 hours, generating a positivity rate of 6.6 percent.
The average weekly positivity fell from 8.3 percent last week to 7.1 percent this week.
The Ministry of Health reports that 13,556 doses of COVID-19 vaccine were administered on Wednesday.
Of these, 807 were first doses, 985 were second doses, 1,608 were third doses and 10,156 were fourth doses.
The numbers used in this story are in the Ontario Department of Health’s Daily Epidemiological Summary COVID-19. The number of cases for any city or region may differ slightly from that reported by the province, as local units report data at different times.