Ten people have died, out of 165 total cases, after contracting Legionnaires' disease in Quebec City, the provincial government said Saturday. Canadian authorities have not publicly pinpointed the exact source of the outbreak. Results from samples may take until mid-September to come in, said Regional Directorate of Health. The agency said it is focusing on places frequented by those afflicted with the disease. Health authorities are looking especially into cooling systems in two large buildings in Quebec, CNN affiliates CTV and CBC report. A government order has been issued requiring those who own or manage buildings in an unspecified target area to regulate levels of chlorine in the water so that the legionella bacteria -- which cause the disease -- cannot grow.
