The summer of 2026 has brought a number of news stories connected, directly or indirectly, to Legionella bacteria and the microbiological risks associated with water systems. This bacterium, responsible for Legionnaires' disease, can develop in hot water systems when certain conditions are favorable: inadequate temperature control, stagnant water and the presence of rust, scale… Often, there's the conviction that weeping merula only affects other people. That it only affects abandoned houses, cases of serious disrepair or insalubrity.Until, that is, it invites itself… The weeping merula, scientifically known as Serpula lacrymans, is a wood-boring fungus nicknamed the cancer of the building industry. And this nickname is no exaggeration... Like cancer, merula… Asbestos is still found in an unexpected place! Asbestos Detected in Saint-Sauveur: Our Laboratory at the Heart of the Action. Legionellosis, a serious lung infection caused by bacteria of the Legionella genus, represents a major public health issue. The infection is contracted through exposure to the bacteria, usually…News | Legionellosis 2026
Did you know that your water heater plays an important role in preventing Legionella pneumophila?
Beyond the walls: the human and social impact of weeping merula
Building cancer: knowing it and fighting it
News | Asbestos Forces Closure of Tennis Courts [La Presse]
Legionella detection: What’s the difference between drinking water and process water?
Lab’Eau-Air-Sol
