Por favor, use este identificador para citar o enlazar este ítem: http://sgc.anlis.gob.ar/handle/123456789/415
Campo DC Valor Lengua/Idioma
dc.contributor.authorLeotta, G. A.es
dc.contributor.authorMiliwebsky, Elizabethes
dc.contributor.authorChinen, Isabeles
dc.contributor.authorEspinosa, Estela M.es
dc.contributor.authorAzzopardi, Kristyes
dc.contributor.authorTennant, Sharon M.es
dc.contributor.authorRobins-Browne, Roy M.es
dc.contributor.authorRivas, Martaes
dc.date.accessioned2012-11-26T11:33:20Z-
dc.date.available2012-11-26T11:33:20Z-
dc.date.issued2008-
dc.identifier.issn1471-2180-
dc.identifier.urihttp://www.biomedcentral.com/content/pdf/1471-2180-8-46.pdf-
dc.identifier.urihttp://sgc.anlis.gob.ar/handle/123456789/415-
dc.descriptionFil: Leotta, Gerardo A. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas. Servicio Fisiopatogenia; Argentina.es
dc.descriptionFil: Miliwebsky, Elizabeth. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas. Servicio Fisiopatogenia; Argentina.es
dc.descriptionFil: Chinen, Isabel. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas. Servicio Fisiopatogenia; Argentina.es
dc.descriptionFil: Espinosa, Estela M. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas. Servicio Fisiopatogenia; Argentina.es
dc.descriptionFil: Azzopardi, Kristy. University of Melbourne. Department of Microbiology and Immunology; Australia.es
dc.descriptionFil: Tennant, Sharon M. University of Melbourne. Department of Microbiology and Immunology; Australia.es
dc.descriptionFil: Robins-Browne, Roy M. University of Melbourne. Department of Microbiology and Immunology; Australia.es
dc.descriptionFil: Rivas, Marta. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas. Servicio Fisiopatogenia; Argentina.es
dc.description.abstractBACKGROUND Shiga toxin-producing Escherichia coli (STEC) is an important cause of bloody diarrhoea (BD), non-bloody diarrhoea (NBD) and the haemolytic uraemic syndrome (HUS). In Argentina and New Zealand, the most prevalent STEC serotype is O157:H7, which is responsible for the majority of HUS cases. In Australia, on the other hand, STEC O157:H7 is associated with a minority of HUS cases. The main aims of this study were to compare the phenotypic and genotypic characteristics of STEC O157 strains isolated between 1993 and 1996 from humans in Argentina, Australia and New Zealand, and to establish their clonal relatedness. RESULTS Seventy-three O157 STEC strains, isolated from HUS (n = 36), BD (n = 20), NBD (n = 10), or unspecified conditions (n = 7) in Argentina, Australia and New Zealand, were analysed. The strains were confirmed to be E. coli O157 by biochemical tests and serotyping. A multiplex polymerase chain reaction (PCR) was used to amplify the stx1, stx2 and rfbO157 genes and a genotyping method based on PCR-RFLP was used to determine stx1 and stx2 variants. This analysis revealed that the most frequent stx genotypes were stx2/stx2c (vh-a) (91%) in Argentina, stx2 (89%) in New Zealand, and stx1/stx2 (30%) in Australia. No stx1-postive strains were identified in Argentina or New Zealand. All strains harboured the eae gene and 72 strains produced enterohaemolysin (EHEC-Hly). The clonal relatedness of strains was investigated by phage typing and pulsed-field gel electrophoresis (PFGE). The most frequent phage types (PT) identified in Argentinian, Australian, and New Zealand strains were PT49 (n = 12), PT14 (n = 9), and PT2 (n = 15), respectively. Forty-six different patterns were obtained by XbaI-PFGE; 37 strains were grouped in 10 clusters and 36 strains showed unique patterns. Most clusters could be further subdivided by BlnI-PFGE. CONCLUSION STEC O157 strains isolated in Argentina, Australia, and New Zealand differed from each other in terms of stx-genotype and phage type. Additionally, no common PFGE patterns were found in strains isolated in the three countries. International collaborative studies of the type reported here are needed to detect and monitor potentially hypervirulent STEC clones.es
dc.formatapplication/pdfES
dc.language.isoenes
dc.relation.ispartofBMC microbiologyes
dc.rightsOpen Accessen_US
dc.rightsCreative Commons Attribution 4.0 International License-
dc.rights.urihttps://creativecommons.org/licenses/by/2.0/-
dc.sourceBMC Microbiology, 2008, 8(46).en_US
dc.subjectEscherichia colies
dc.subjectEscherichia coli O157es
dc.subjectToxina Shigaes
dc.subjectArgentinaes
dc.subjectAustraliaes
dc.subjectNueva Zelandaes
dc.titleCharacterisation of Shiga toxin-producing Escherichia coli O157 strains isolated from humans in Argentina, Australia and New Zealandes
dc.typeArtículoes
dc.coverageARGen_US
dc.coverageAUSen_US
dc.coverageNZLen_US
anlis.essnrd1es
item.cerifentitytypePublications-
item.openairetypeArtículo-
item.fulltextWith Fulltext-
item.grantfulltextopen-
item.languageiso639-1en-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
crisitem.author.deptAdministración Nacional de Laboratorios e Institutos de Salud “Dr. Carlos G. Malbrán” (ANLIS)-
crisitem.author.deptInstituto Nacional de Enfermedades Infecciosas (INEI)-
crisitem.author.deptDepartamento de Bacteriología-
crisitem.author.deptServicio de Fisiopatogenia-
crisitem.author.deptAdministración Nacional de Laboratorios e Institutos de Salud “Dr. Carlos G. Malbrán” (ANLIS)-
crisitem.author.deptInstituto Nacional de Enfermedades Infecciosas (INEI)-
crisitem.author.deptDepartamento de Bacteriología-
crisitem.author.deptServicio de Fisiopatogenia-
crisitem.author.deptAdministración Nacional de Laboratorios e Institutos de Salud “Dr. Carlos G. Malbrán” (ANLIS)-
crisitem.author.deptInstituto Nacional de Enfermedades Infecciosas (INEI)-
crisitem.author.deptDepartamento de Bacteriología-
crisitem.author.deptServicio de Fisiopatogenia-
crisitem.author.parentorgAdministración Nacional de Laboratorios e Institutos de Salud “Dr. Carlos G. Malbrán” (ANLIS)-
crisitem.author.parentorgInstituto Nacional de Enfermedades Infecciosas (INEI)-
crisitem.author.parentorgDepartamento de Bacteriología-
crisitem.author.parentorgAdministración Nacional de Laboratorios e Institutos de Salud “Dr. Carlos G. Malbrán” (ANLIS)-
crisitem.author.parentorgInstituto Nacional de Enfermedades Infecciosas (INEI)-
crisitem.author.parentorgDepartamento de Bacteriología-
crisitem.author.parentorgAdministración Nacional de Laboratorios e Institutos de Salud “Dr. Carlos G. Malbrán” (ANLIS)-
crisitem.author.parentorgInstituto Nacional de Enfermedades Infecciosas (INEI)-
crisitem.author.parentorgDepartamento de Bacteriología-
Aparece en las colecciones: snrd
Publicaciones INEI
Ficheros en este ítem:
Fichero Descripción Tamaño Formato
BMCMicrobiology,2008,8(46).pdfPDF2.11 MBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro sencillo del ítem

Visualizaciones de página(s)

177
comprobado en 15-ago-2025

Descarga(s)

109
comprobado en 15-ago-2025

Google ScholarTM

Consultar


Este ítem está sujeto a una licencia Creative Commons Licencia Creative Commons Creative Commons