People pass by a poster warming about a new coronavirus at Suseo Station in Seoul, South Korea, Friday, Jan. 24, 2020. China broadened its unprecedented, open-ended lockdowns to encompass around 25 million people Friday to try to contain a deadly new virus that has sickened hundreds, though the measures' potential for success is uncertain. The sign reads "Prevention."

Image Credit: (AP Photo/Ahn Young-joon)

TORONTO - Canadians have no need to worry about the prospect of mass quarantines, even in the likely event the coronavirus is discovered here, public health authorities said on Friday.

They said scary images coming from a now isolated Wuhan, a Chinese city with 11 million people, will not be repeated here.

"Absolutely not," Dr. Peter Donnelly, with Public Health Ontario, said. "If a case comes here, and it is probably likely that we will have a case here, it will still be business as normal."

In addition to Wuhan, where the virus outbreak has been concentrated, China has shut transportation in at least 12 other cities home to more than 36 million people. Bustling streets, malls and other public spaces have turned eerily quiet, masks are mandatory in public, and some hospitals have run low on medical supplies.

Toronto's medical officer of health, Dr. Eileen de Villa, urged people to consult credible information sources on the outbreak. Good places include websites of the Public Health Agency of Canada, Public Health Ontario and Toronto Public Health, she said.

"I ask members of the public to rely on evidence-informed, credible sources of information when you're looking for updates," de Villa said.

READ MORE: China expands lockdown against virus, fast-tracks hospital

In this photo released by China's Xinhua News Agency, a medical worker writes their colleague's name on a protective suit to aid in identification as they work at Zhongnan Hospital of Wuhan University in Wuhan in central China's Hubei Province, Firday, Jan. 24, 2020. China announced Friday that it is swiftly building a 1,000-bed hospital dedicated to patients infected with a new virus that has killed 26 people, sickened hundreds and prompted unprecedented lockdowns of cities during the country's most important holiday.

Image Credit: (Xiong Qi/Xinhua via AP)

So far, the coronavirus is reported to have killed more than two dozen people and made hundreds of others ill. Symptoms can mirror those of the cold and flu, including cough, fever, chest tightening and shortness of breath, but can worsen to pneumonia.

While no cases have been reported in Canada, concerns about the virus have stirred memories of the SARS outbreak in 2003 that killed 44 Canadians and saw Toronto turn temporarily into something of an international pariah after the World Health Organization issued a travel advisory warning people to avoid the city.

Donnelly said the situation is now very different from what it was then. Authorities, he said, are much better prepared than they were for SARS: Communications are more robust, hospitals have better isolation facilities, and a reliable test is available to detect the coronavirus within 24 hours.

"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. "In situations like this, speed and certainty are both very important."

Health officials were also working with the National Microbiology Lab in Winnipeg to develop an even quicker test.

The federal government has beefed up measures at major airports in Toronto, Vancouver and Montreal.

Visitors are now being asked about any travel to Wuhan in the past 14 days and a positive response would trigger further investigation.

Ontario Health Minister Christine Eliott said border agents will decide if a traveller needs an immediate medical assessment and treatment. An ambulance would take the person from the airport directly to hospital. Fact sheets are also being prepared, she said.

De Villa stressed the importance of good hygiene to prevent virus transmission. Simple steps include washing hands thoroughly, covering coughs and sneezes, and staying home if you're ill.

While the World Health Organization has decided for now against declaring the outbreak a global emergency, Donnelly said public health authorities were still working to ensure any cases here are dealt with effectively.

"We are not complacent, we're working extremely hard on this but we are quietly confident that we can handle this," Donnelly said.

Canada's chief medical officer has said the chances of a outbreak here were low. Health officials note the common cold comes from the same family as the latest coronavirus and that influenza virus kills thousands of Canadians every year.

On Friday, Quebec health officials said coronavirus tests on six travellers from China under observation in Montreal and Quebec City hospitals had come back negative.

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. Arruda said vigilance is key.

"There's no reason for fear because sometimes the epidemic of fear is greater than what is going on," he said.

— with files from Sidhartha Banerjee in Montreal

This report by The Canadian Press was first published Jan. 24, 2020.

News from © The Canadian Press, 2020