Transport to and from Wuhan were shut down on Thursday.
According to reports, the unidentified passenger (not pictured above) arrived at the airport on an American Airlines flight from Mexico City shortly before 6:40 p.m. Wednesday. Good places include websites of the Public Health Agency of Canada, Public Health Ontario and Toronto Public Health, she said.
Officials said they would promptly announce if testing confirms that the student has the Wuhan coronavirus, which has killed 25 people in China and infected more than 830. Special Chinese administrative regions Hong Kong and Macau, and Taiwan have also reported cases.
China has effectively quarantined almost 20 million people across Wuhan and other cities, and announced measures to curb the disease nationwide as hundreds of millions of people began travelling across the country this week for the Lunar New Year holiday.
Streets and shopping centres in Wuhan were eerily quiet after authorities told residents not to leave the major city of 11 million people, where most of the cases have been identified.
"This was a disease unknown to science only two weeks ago and we now have the full genetic fingerprint of the virus and we have a test, which is specific and reliable", Donnelly said.
Dr. Horracio Arruda, Quebec's director of public health, said earlier in the week the six had landed in Quebec with symptoms associated with the illness. In more severe cases, infection can cause pneumonia, severe acute respiratory syndrome, kidney failure and even death. "Make no mistake, though, this is an emergency in China", WHO chief Tedros Adhanom Ghebreyesus said.
If WHO had declared a global emergency, it would prompt countries to intensify their cooperation towards reining in the virus, including possibly on trade and travel restrictions - something the organisation is not recommending for the time being. "It may yet become one".
The outbreak has cast a shadow over Lunar New Year celebrations. Hundreds of millions of people in China are expected to travel over the course of the new year period, which begins Saturday, both within the country and overseas.
Minister for Health and Medical Services Dr Ifereimi Waqainabete is advising Fijians planning to travel to China to take precautions. Passengers from China are facing screening measures at five United States airports and a host of transport hubs across Asia, including seven airports in India.