A staff member (L) of VIA Rail Canada hands over a new face mask to a passenger at Union Station in Toronto, Canada, on June 23, 2020. Passengers of Canada's national railway service VIA Rail are required to wear masks or face covering starting on June 23 to reduce the risk of the COVID-19 infection. (Photo by Zou Zheng/Xinhua)

A staff member (1st L) of VIA Rail Canada hands over a new face mask to a passenger at Union Station in Toronto, Canada, on June 23, 2020. Passengers of Canada's national railway service VIA Rail are required to wear masks or face covering starting on June 23 to reduce the risk of the COVID-19 infection. (Photo by Zou Zheng/Xinhua)

Passengers wearing face masks arrive at Union Station in Toronto, Canada, on June 23, 2020. Passengers of Canada's national railway service VIA Rail are required to wear masks or face covering starting on June 23 to reduce the risk of the COVID-19 infection. (Photo by Zou Zheng/Xinhua)

A staff member (1st R) of VIA Rail Canada wearing a face mask scans a ticket of a passenger at Union Station in Toronto, Canada, on June 23, 2020. Passengers of Canada's national railway service VIA Rail are required to wear masks or face covering starting on June 23 to reduce the risk of the COVID-19 infection. (Photo by Zou Zheng/Xinhua)