Consulta: creatorFacets:"Servais, Pierre"
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Data/hora: 02/06/2024 17:28:37

Change in the structure of Escherichia coli population and the pattern of virulence genes along a rural aquatic continuum
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Petit, Fabienne; Clermont, Olivier; Delannoy, Sabine; Servais, Pierre; Gourmelon, Michele; Fach, Patrick; Oberle, Kenny; Fournier, Matthieu; Denamur, Erick; Berthe, Thierry.
The aim of this study was to investigate the diversity of the E. coli population, focusing on the occurrence of pathogenic E. coli, in surface water draining a rural catchment. Two sampling campaigns were carried out in similar hydrological conditions (wet period, low flow) along a river continuum, characterized by two opposite density gradients of animals (cattle and wild animals) and human populations. While the abundance of E. coli slightly increased along the river continuum, the abundance of both human and ruminant-associated Bacteroidales markers, as well as the number of E. coli multi-resistant to antibiotics, evidenced a fecal contamination originating from animals at upstream rural sites, and from humans at downstream urban sites. A strong spatial...
Tipo: Text
Palavras-chave: Water; Sediment; Pathogenic E. coli; Virulence gene; Shiga toxin.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00378/48887/49328.pdf