Sherif Barakat of Ottawa said that statement doesn't add up. Barakat flew home from Cancun on Jan. 9, was tested upon arrival and waited five days at home in quarantine before he received his negative test result.

Barakat said the government has yet to offer up the science explaining why he had to quarantine but someone entering from the U.S. is exempt.

"If you're treating people differently, then the question is why?" he said. "The disease doesn't have any boundaries."

Global epidemiologist, Dr. Prabhat Jha said there's no scientific explanation for less stringent rules for travellers from the U.S., as Omicron has spread globally.

"What's the difference between someone coming from the U.K. or someone coming from New York? There's not in terms of the Omicron prevalence and the spread," said Jha, who works at St. Michael's Hospital in Toronto.

https://ca.yahoo.com/news/canadian-travellers-want-know-why-090000308.html