A medical worker wearing personal protective equipment carries registration forms for people outside a drive-thru COVID-19 testing center in Mississauga, Ontario, Canada, on Dec. 15, 2021. Canada's cumulative COVID-19 cases surpassed 1,850,000 as of Wednesday evening, with the total hitting 1,850,473, including 29,987 deaths, according to CTV. (Photo by Zou Zheng/Xinhua)
A medical worker wearing personal protective equipment prepares to collect a sample at a drive-thru COVID-19 testing center in Mississauga, Ontario, Canada, on Dec. 15, 2021. Canada's cumulative COVID-19 cases surpassed 1,850,000 as of Wednesday evening, with the total hitting 1,850,473, including 29,987 deaths, according to CTV. (Photo by Zou Zheng/Xinhua)
A medical worker wearing personal protective equipment works at a drive-thru COVID-19 testing center in Mississauga, Ontario, Canada, on Dec. 15, 2021. Canada's cumulative COVID-19 cases surpassed 1,850,000 as of Wednesday evening, with the total hitting 1,850,473, including 29,987 deaths, according to CTV. (Photo by Zou Zheng/Xinhua)
People wait in their vehicles to have COVID-19 tests at a drive-thru COVID-19 testing center in Mississauga, Ontario, Canada, on Dec. 15, 2021. Canada's cumulative COVID-19 cases surpassed 1,850,000 as of Wednesday evening, with the total hitting 1,850,473, including 29,987 deaths, according to CTV. (Photo by Zou Zheng/Xinhua)
People wearing face masks line up to enter a COVID-19 vaccine clinic in Mississauga, Ontario, Canada, on Dec. 15, 2021. Canada's cumulative COVID-19 cases surpassed 1,850,000 as of Wednesday evening, with the total hitting 1,850,473, including 29,987 deaths, according to CTV. (Photo by Zou Zheng/Xinhua)
