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Abstract
The non-O157 Shiga toxin–producing Escherichia coli (STEC) contamination in carcasses and feces of 811 bovines in nine beef abattoirs from Argentina was analyzed during a period of 17 months. The feces of 181 (22.3%) bovines were positive for non-O157 STEC, while 73 (9.0%) of the carcasses showed non-O157 STEC contamination. Non-O157 STEC strains isolated from feces (227) and carcasses (80) were characterized. The main serotypes identified were O178:H19, [ver mas...]
dc.contributor.authorMasana, Marcelo Oscar
dc.contributor.authorD’Astek, Beatriz A.
dc.contributor.authorPalladino, Pablo Martin
dc.contributor.authorGalli, Lucia
dc.contributor.authorDel Castillo, Lourdes
dc.contributor.authorCarbonari, Claudia Carolina
dc.contributor.authorLeotta, Gerardo A.
dc.contributor.authorVilacoba, E.
dc.contributor.authorIrino, K.
dc.contributor.authorRivas, Marta
dc.date.accessioned2019-05-07T11:27:27Z
dc.date.available2019-05-07T11:27:27Z
dc.date.issued2011-12
dc.identifier.issn0362-028X
dc.identifier.issn1944-9097
dc.identifier.otherhttps://doi.org/10.4315/0362-028X.JFP-11-189
dc.identifier.urihttp://hdl.handle.net/20.500.12123/5048
dc.identifier.urihttps://jfoodprotection.org/doi/pdf/10.4315/0362-028X.JFP-11-189
dc.description.abstractThe non-O157 Shiga toxin–producing Escherichia coli (STEC) contamination in carcasses and feces of 811 bovines in nine beef abattoirs from Argentina was analyzed during a period of 17 months. The feces of 181 (22.3%) bovines were positive for non-O157 STEC, while 73 (9.0%) of the carcasses showed non-O157 STEC contamination. Non-O157 STEC strains isolated from feces (227) and carcasses (80) were characterized. The main serotypes identified were O178:H19, O8:H19, O130:H11, and O113:H21, all of which have produced sporadic cases of hemolytic-uremic syndrome in Argentina and worldwide. Twenty-two (7.2%) strains carried a fully virulent stx/eae/ehxA genotype. Among them, strains of serotypes O103:[H2], O145:NM, and O111:NM represented 4.8% of the isolates. XbaI pulsed-field gel electrophoresis pattern analysis showed 234 different patterns, with 76 strains grouped in 30 clusters. Nine of the clusters grouped strains isolated from feces and from carcasses of the same or different bovines in a lot, while three clusters were comprised of strains distributed in more than one abattoir. Patterns AREXSX01.0157, AREXBX01.0015, and AREXPX01.0013 were identified as 100% compatible with the patterns of one strain isolated from a hemolytic-uremic syndrome case and two strains previously isolated from beef medallions, included in the Argentine PulseNet Database. In this survey, 4.8% (39 of 811) of the bovine carcasses appeared to be contaminated with nonO157 STEC strains potentially capable of producing sporadic human disease, and a lower proportion (0.25%) with strains able to produce outbreaks of severe disease.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.rightsinfo:eu-repo/semantics/openAccesses_AR
dc.sourceJournal of Food Protection 74 (12 ): 2008–2017 (2011)es_AR
dc.subjectEscherichia colies_AR
dc.subjectBeefeng
dc.subjectCarne de Reses_AR
dc.subjectAbattoirseng
dc.subjectMataderoses_AR
dc.subjectGenotipos
dc.subjectGenotypeseng
dc.subject.otherGenotypiceng
dc.subject.otherNon-O157 Shiga Toxineng
dc.subject.otherBeef Abattoirseng
dc.titleGenotypic Characterization of Non-O157 Shiga Toxin–Producing Escherichia coli in Beef Abattoirs of Argentinaes_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.filFil: Masana, Marcelo Oscar. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Tecnología de Alimentos; Argentina.es_AR
dc.description.filFil: D’astek, B.A. Instituto Nacional de Enfermedades Infecciosas-ANLIS ‘‘Dr. Carlos G. Malbrán’’. Servicio Fisiopatogenia; Argentina.es_AR
dc.description.filFil: Palladino, Pablo Martin. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Tecnología de Alimentos; Argentina.es_AR
dc.description.filFil: Galli, Lucia. Instituto Nacional de Enfermedades Infecciosas-ANLIS ‘‘Dr. Carlos G. Malbrán’’. Servicio Fisiopatogenia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.es_AR
dc.description.filFil: Del Castillo, Lourdes. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Tecnología de Alimentos; Argentina.es_AR
dc.description.filFil: Carbonari, C. Instituto Nacional de Enfermedades Infecciosas-ANLIS ‘‘Dr. Carlos G. Malbrán’’. Servicio Fisiopatogenia; Argentina.es_AR
dc.description.filFil: Leotta, G. A. Instituto Nacional de Enfermedades Infecciosas-ANLIS ‘‘Dr. Carlos G. Malbrán’’. Servicio Fisiopatogenia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.es_AR
dc.description.filFil: Vilacoba, E. Instituto Nacional de Enfermedades Infecciosas-ANLIS ‘‘Dr. Carlos G. Malbrán’’. Servicio Fisiopatogenia; Argentina.es_AR
dc.description.filFil: Irino, K. Instituto Adolfo Lutz. Secao de Bacteriologia; Brasil.es_AR
dc.description.filFil: Rivas, M. Instituto Nacional de Enfermedades Infecciosas-ANLIS ‘‘Dr. Carlos G. Malbrán’’. Servicio Fisiopatogenia; Argentina.es_AR
dc.subtypecientifico


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