A fifth person in Ontario has been diagnosed with coronavirus CoVid-19.
The woman in her sixties recently travelled from Iran. ?Iran has seen a local outbreak with more than 150 cases.
She was treated at Sunnybrook hospital in Toronto and is at home in self isolation.
Canadian health officials have not declared it to be a pandemic however they are warning members of the public to prepare for community transmission of the virus as if it were.
Air Canada has cancelled all flights to China until mid-April to help curb the spread of the virus in Canada.

Senator Lynn Beyak issued an official apology for racist letters that appeared on her website that she refused to remove.
The letters were sent to Beyak, a senator from Ontario, in support of her defence of the residential school system. While the Truth and Reconciliation Commission concluded the system caused horrific abuse and alienation for generations of First Nations, Metis and Inuit children, Beyak has suggested there were benefits to the program that have been overshadowed.
The letters she received and published online echoed her views but some also went further, including suggestions that Indigenous Peoples and their cultures were inferior.
She said Tuesday she now believes she was in the wrong.
Beyak said the opinions expressed in the letters were disrespectful divisive and unacceptable.
Beyak said she is ready to engage swiftly and meaningfully in completing required cultural sensitivity training in order to reinstate her seat in the Senate.

Commuter rail traffic is back to normal in and around Toronto after police made arrests at a protest that emerged Tuesday as part of ongoing rail blockades across the country.
Toronto police say they arrested three people at the demonstrations in the city’s west end that were in support of Wet’suwet’en hereditary chiefs who oppose a natural gas pipeline cutting across their traditional territory. In the last two days, demonstrators set up new sites in Ontario and Quebec.
A protest at a Hamilton GO station caused numerous cancellations and delays since Monday evening, but local police said protesters left the blockade site in the city peacefully at around 5 p.m. Tuesday.
Other new disruptions that surfaced Tuesday include a blockade along a Highway 6 at Six Nations, and one along a stretch of rail in Sherbrooke, Que., about 150 kilometres east of Montreal.
Federal Indigenous Services Minister Marc Miller has said Ottawa is still committed to peacefully resolving the situation that has hampered freight and passenger travel in much of the country for nearly three weeks.

Members of Ontario’s legislature began a new tradition Monday of singing “God Save the Queen” in the chamber, which an Indigenous politician called a step backward for reconciliation.
The legislature recently adopted a host of procedural rule changes, including singing the royal anthem in addition to the Canadian national anthem on the first Monday of each month. It was sung Monday for the first time since the new rule went into effect, and marks the first time ever it will be sung on a regular basis, according to the legislature’s procedural services.
New Democrat Sol Mamakwa, who represents the northern riding of Kiiwetinoong with a majority Indigenous population, said it was hurtful to hear the anthem.
Mamakwa, a Kingfisher Lake band member, said singing ‘God Save the Queen’ is a celebration of a hurtful and violent colonial past.
Government house leader Paul Calandra said singing the anthem is a show of respect for the Queen of Canada, who has served for decades.