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Increased levels of multiresistant bacteria and resistance genes after wastewater treatment and their dissemination into Lake Geneva, Switzerland [article]

by Czekalski, Nadine; Berthold, Tom; Caucci, Serena; Egli, Andrea; Bürgmann, Helmut.
Material type: materialTypeLabelArticleSAPHIR theme(s): Environnement et santéMeSH subject(s): Sewage | Bacteriology | Water Pollution | Drug Resistance, Bacterial | Sewage -- microbiology | Water Pollution -- analysis | SwitzerlandOther subject(s): Genève | VaudOnline resources: Date de consultation : 22.05.2012 Summary: At present, very little is known about the fate and persistence of multiresistant bacteria (MRB) and their resistance genes in natural aquatic environments.Treated, but partly also untreated sewage of the city of Lausanne, Switzerland is discharged into Vidy Bay (Lake Geneva) resulting in high levels of contamination in this part of the lake. In the present work we have studied the prevalence of MRB and resistance genes in the waste waterstream of Lausanne. Samples from hospital and municipal raw sewage, treated effluent from Lausanne’s waste water treatment plant (WTP) as well as lake water and sediment samples obtained close to the WTP outlet pipe and a remote site close to a drinking water pump were evaluated for the prevalence of MRB... [Extr. Authors] De grandes quantités de bactéries résistantes aux antibiotiques se déversent quotidiennement dans l’environnement par le biais des eaux usées et en particulier des effluents hospitaliers. Si les stations d’épuration réduisent le nombre total de germes, les traitements semblent épar-gner voire favoriser les plus dangereux d’entre eux, les multirésistants. C’est ce que viennent de démontrer des scientifiques de l’Eawag (L'Institut de Recherche de l'Eau du Domaine des EPF) en étudiant le Léman au large de Lausanne. [Site de EAWAG]
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At present, very little is known about the fate and persistence of multiresistant bacteria (MRB) and their resistance genes in natural aquatic environments.Treated, but partly also untreated sewage of the city of Lausanne, Switzerland is discharged into Vidy Bay (Lake Geneva) resulting in high levels of contamination in this part of the lake. In the present work we have studied the prevalence of MRB and resistance genes in the waste waterstream of Lausanne. Samples from hospital and municipal raw sewage, treated effluent from Lausanne’s waste water treatment plant (WTP) as well as lake water and sediment samples obtained close to the WTP outlet pipe and a remote site close to a drinking water pump were evaluated for the prevalence of MRB... [Extr. Authors] De grandes quantités de bactéries résistantes aux antibiotiques se déversent quotidiennement dans l’environnement par le biais des eaux usées et en particulier des effluents hospitaliers. Si les stations d’épuration réduisent le nombre total de germes, les traitements semblent épar-gner voire favoriser les plus dangereux d’entre eux, les multirésistants. C’est ce que viennent de démontrer des scientifiques de l’Eawag (L'Institut de Recherche de l'Eau du Domaine des EPF) en étudiant le Léman au large de Lausanne. [Site de EAWAG]