A woman recently returned from Iran has been diagnosed at Sunnybrook HSC as the fifth presumptive positive coronavirus case. The patient, who is 60, has been sent home to remain in self-quarantine for two weeks. Toronto’s only other active COVID-19 case is a woman in her 20s, who is also in self-isolation at home and recovering well. Canada has confirmed 12 cases of the illness overall, which has sickened more than 80,000 people and caused more than 2,700 deaths across the world.