A notice reminding people to wear a face covering is seen on a Go train in Toronto, Canada, on May 11, 2022. Canada confirmed 3,096 new COVID-19 cases Wednesday noon, elevating its national caseload to 3,802,456 with 39,906 deaths, CTV reported. (Photo by Zou Zheng/Xinhua)
A woman wearing a face mask walks past a notice reminding people to wear a face covering at Union Station in Toronto, Canada, on May 11, 2022. Canada confirmed 3,096 new COVID-19 cases Wednesday noon, elevating its national caseload to 3,802,456 with 39,906 deaths, CTV reported. (Photo by Zou Zheng/Xinhua)
A woman wearing a face mask walks past a poster reminding people to wear a face covering at Union Station in Toronto, Canada, on May 11, 2022. Canada confirmed 3,096 new COVID-19 cases Wednesday noon, elevating its national caseload to 3,802,456 with 39,906 deaths, CTV reported. (Photo by Zou Zheng/Xinhua)
A man wearing a face mask sits next to a poster reminding people to wear a face covering at Union Station in Toronto, Canada, on May 11, 2022. Canada confirmed 3,096 new COVID-19 cases Wednesday noon, elevating its national caseload to 3,802,456 with 39,906 deaths, CTV reported. (Photo by Zou Zheng/Xinhua)
A poster of VIA Rail Canada's vaccination requirements for passengers is seen at Union Station in Toronto, Canada, on May 11, 2022. Canada confirmed 3,096 new COVID-19 cases Wednesday noon, elevating its national caseload to 3,802,456 with 39,906 deaths, CTV reported. (Photo by Zou Zheng/Xinhua)