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Contamination virale et indicateurs du risque (Programme Liteau) 5
Pommepuy, Monique; Caprais, Marie-paule; Le Mennec, Cecile; Parnaudeau, Sylvain; Le Guyader, Francoise; Camus, Patrick; Dimeet, Joel; Treguier, Cathy; Bon, Fabienne; Pothier, Pierre; Kohli E, Evelyne; Brachet, R.; Flahault, A.; Sarrette, B.; Vilagines, P..
Le développement des activités humaines dans les régions littorales entraîne le rejet de germes pathogènes d'origine fécale dans l'environnement estuarien et marin. L'amélioration des traitements d'épuration, mais aussi la mise en place de normes bactériologiques pour surveiller les zones de production conchylicole, ont entraîné une diminution des épidémies liées à la consommation de coquillages. Ainsi, à l'heure actuelle, même si l'origine de ces gastro-entérites n'est pas élucidée dans sa globalité (rôle probable des vibrios ou d'autres bactéries), les virus semblent jouer un rôle important et leur implication té clairement établie dans les phénomènes épidémiques (Miossec et Vaillant, 2001) Les principaux virus humains susceptibles d'être détectés dans...
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Ano: 2002 URL: http://archimer.ifremer.fr/doc/00044/15549/12936.pdf
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Detection of multiple noroviruses associated with an international gastroenteritis outbreak linked to oyster consumption 5
Le Guyader, Soizick; Bon, Fabienne; Demedici, Dario; Parnaudeau, Sylvain; Bertone, Alessandra; Crudeli, Silvia; Doyle, Aoife; Zidane, Mohamed; Suffredini, Elisabetta; Kohli E, Evelyne; Maddalo, Francesco; Monini, Marina; Gallay, Anne; Pommepuy, Monique; Pothier, Pierre; Ruggeri, Franco M..
An international outbreak linked to oyster consumption involving a group of over 200 people in Italy and 127 total subjects in 13 smaller clusters in France was analyzed using epidemiological and clinical data and shellfish samples. Environmental information from the oyster-producing area, located in a lagoon in southern France, was collected to investigate the possible events leading to the contamination. Virologic analyses were conducted by reverse transcription-PCR (RT-PCR) using the same primer sets for both clinical and environmental samples. After sequencing, the data were analyzed through the database operated by the scientific network FoodBorne Viruses in Europe. The existence of an international collaboration between laboratories was critical to...
Tipo: Text Palavras-chave: Seafood; Contamination; Norovirus; Epidemiology; Virology; Oyster.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-2096.pdf
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Aichi Virus, Norovirus, Astrovirus, Enterovirus, and Rotavirus Involved in Clinical Cases from a French Oyster-Related Gastroenteritis Outbreak 5
Le Guyader, Soizick; Le Saux, Jean-claude; Ambert-balay, Katia; Krol, Joanna; Serais, Ophelie; Parnaudeau, Sylvain; Giraudon, Helene; Delmas, Gilles; Pommepuy, Monique; Pothier, Pierre; Atmar, Robert L..
Following a flooding event close to a shellfish production lagoon, 205 cases of gastroenteritis were linked to oyster consumption. Twelve stool samples from different individuals were collected. Analysis showed that eight samples were positive for multiple enteric viruses, and one stool sample had seven different enteric viruses. Analysis of shellfish implicated in the outbreak allowed detection of the same diversity of enteric viruses, with some viral genomic sequences being identical to those obtained from stool sample analysis. Shellfish were contaminated by as many as five different enteric viruses. For the first time in Europe, Aichi virus was identified in oyster samples. Shellfish samples collected over 3 weeks following the outbreak showed a...
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Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-6099.pdf
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Comprehensive Analysis of a Norovirus-Associated Gastroenteritis Outbreak, from the Environment to the Consumer 5
Le Guyader, Soizick; Krol, Joanna; Ambert-balay, Katia; Ruvoen-clouet, Nathalie; Desaubliaux, Benedicte; Parnaudeau, Sylvain; Le Saux, Jean-claude; Ponge, Agnes; Pothier, Pierre; Atmar, Robert L.; Le Pendu, Jacques.
Noroviruses have been recognized to be the predominant agents of nonbacterial gastroenteritis outbreaks in humans, and their transmission via contaminated shellfish consumption has been demonstrated. Norovirus laboratory experiments, volunteer challenge studies, and community gastroenteritis outbreak investigations have identified human genetic susceptibility factors related to histo-blood group antigen expression. Following a banquet in Brittany, France, in February 2008, gastroenteritis cases were linked to oyster consumption. This study identified an association of the norovirus illnesses with histo-blood group expression, and oyster contamination with norovirus was confirmed by qualitative and quantitative analyses. The secretor phenotype was...
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Ano: 2010 URL: http://archimer.ifremer.fr/doc/00002/11309/8050.pdf
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