A traveler arrives at Union Station in Toronto, Canada, on March 30, 2020. As of 2 p.m. Canada Eastern Time on Monday, there were 7,288 confirmed COVID-19 cases and 70 deaths in Canada. (Photo by Zou Zheng/Xinhua)

Travelers line up with a social distance to go through a security gate at Terminal 3 of Pearson International Airport in Toronto, Canada, on March 30, 2020. As of 2 p.m. Canada Eastern Time on Monday, there were 7,288 confirmed COVID-19 cases and 70 deaths in Canada. (Photo by Zou Zheng/Xinhua)

A notice of new restrictions for passengers is seen at Terminal 1 of Pearson International Airport in Toronto, Canada, on March 30, 2020. As of 2 p.m. Canada Eastern Time on Monday, there were 7,288 confirmed COVID-19 cases and 70 deaths in Canada. (Photo by Zou Zheng/Xinhua)

A notice of new restrictions for passengers is seen at Terminal 3 of Pearson International Airport in Toronto, Canada, on March 30, 2020. As of 2 p.m. Canada Eastern Time on Monday, there were 7,288 confirmed COVID-19 cases and 70 deaths in Canada. (Photo by Zou Zheng/Xinhua)

A notice of new restrictions for passengers is seen on a screen at Union Station in Toronto, Canada, on March 30, 2020. As of 2 p.m. Canada Eastern Time on Monday, there were 7,288 confirmed COVID-19 cases and 70 deaths in Canada. (Photo by Zou Zheng/Xinhua)