Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/80979
Type: Artigo de periódico
Title: Preliminary virulence genotyping and phylogeny of Escherichia coli from the gut of pigs at slaughtering stage in Brazil
Author: Martins, RP
da Silva, MC
Dutra, V
Nakazato, L
Leite, DD
Abstract: In the current study we screened Escherichia coil from intestine of pigs slaughtered in Mato Grosso, Brazil, for virulence-markers related to human disease. Furthermore, we employed for the first time a phylogenetic assay to explore the association between phylogeny and virulence genotype in E. coil from finished swine. A low prevalence (7.8%) of E. coli harbouring virulence genes was observed. Among the positive isolates, 3.3% could be classified as atypical EPEC, 2.2% as STEC and 2.2% as CDT harbouring E. coli. Virulence genes were not found to co-occur in a strain. Phylogenetic determination of isolates revealed a low prevalence of E. coli lineages related to disease. Therefore, preliminary sampling of 74 pigs indicated that slaughter swine may not be major reservoirs of E. coli capable of causing human disease. In light of the significant association between phylogeny and virulence genotype, we also underscored the phylogenetic grouping of strains as a valuable tool for E. coli surveillance programmes in slaughterhouses. (c) 2012 Elsevier Ltd. All rights reserved.
Subject: Escherichia coli
Slaughter swine
Virulence genotyping
Phylogeny
Country: Inglaterra
Editor: Elsevier Sci Ltd
Rights: fechado
Identifier DOI: 10.1016/j.meatsci.2012.10.007
Date Issue: 2013
Appears in Collections:Unicamp - Artigos e Outros Documentos

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