Legionnaires’ disease outbreak in London, Ont., declared over: health unit Toronto StarLegionnaires’ outbreak in London over but source is still a mystery CBCLegionnaires’ outbreak in London ends after 70 cases, 3 deaths CTV NewsWhat is Legionnaires’ disease? What Ontario residents should know after recent outbreaks Inside HaltonLondon’s deadly legionnaires’ disease outbreak is over: Health officials London Free Press