Travelers wearing face masks walk through the arrivals hall at Toronto Pearson International Airport in Mississauga, Ontario, Canada, on Sept. 7, 2021. Canada began Tuesday to allow entry for fully vaccinated foreigners who have had a full course of a Health Canada-approved COVID-19 vaccine. (Photo by Zou Zheng/Xinhua)
An airplane prepares to land at Toronto Pearson International Airport in Mississauga, Ontario, Canada, on Sept. 7, 2021. Canada began Tuesday to allow entry for fully vaccinated foreigners who have had a full course of a Health Canada-approved COVID-19 vaccine. (Photo by Zou Zheng/Xinhua)
Travelers wearing face masks are seen at the arrivals hall of Toronto Pearson International Airport in Mississauga, Ontario, Canada, on Sept. 7, 2021. Canada began Tuesday to allow entry for fully vaccinated foreigners who have had a full course of a Health Canada-approved COVID-19 vaccine. (Photo by Zou Zheng/Xinhua)
An international traveler presents documents to a healthcare worker at the arrivals hall of Vancouver International Airport in Richmond, British Columbia, Canada, on Sept. 7, 2021. Canada began Tuesday to allow entry for fully vaccinated foreigners who have had a full course of a Health Canada-approved COVID-19 vaccine. (Photo by Liang Sen/Xinhua)
Healthcare staff work inside a COVID-19 rapid test center at the arrivals hall of Vancouver International Airport in Richmond, British Columbia, Canada, on Sept. 7, 2021. Canada began Tuesday to allow entry for fully vaccinated foreigners who have had a full course of a Health Canada-approved COVID-19 vaccine. (Photo by Liang Sen/Xinhua)
An international traveler enters a COVID-19 rapid test center at Vancouver International Airport in Richmond, British Columbia, Canada, on Sept. 7, 2021. Canada began Tuesday to allow entry for fully vaccinated foreigners who have had a full course of a Health Canada-approved COVID-19 vaccine. (Photo by Liang Sen/Xinhua)