Ontario announces new coronavirus case

Ontario health officials say the province now has a third confirmed case of the novel coronavirus, bringing Canada's total number of cases to four. Ontario's chief medical officer of health says the latest case is a woman in her 20s in London, Ont., who travelled to the affected area in China. Dr. David Williams says initial testing in Ontario showed the woman was negative for the virus, but tests at the National Microbiology Laboratory in Winnipeg came back as "weakly" positive