Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/109192
Type: Artigo de periódico
Title: Prevalence Of Virulence Factors In Escherichia Coli Isolated From Healthy Animals And Water Sources In Brazil
Author: Carlos C.
Alexandrino F.
Vieira M.A.M.
Stoppe N.C.
Sato M.I.Z.
Gomes T.A.T.
Ottoboni L.M.M.
Abstract: The aim of this work was to verify the presence of seven virulence factors (ST, LT, eae, stx 1, stx 2, INV and EAEC) among Escherichia coli strains isolated from healthy humans, bovines, chickens, sheep, pigs and goats, from two sewage treatment plants and from the TietêRiver. We have found a high prevalence of eae, stx 1 and stx 2 in ruminants. The EAEC gene was only found in humans and sewage. No strains presented ST, LT or INV. BOX-PCR fingerprints revealed a high diversity among the strains analysed and a non-clonal origin of strains that presented the same virulence factors. Therefore, we concluded that ruminants may constitute an important reservoir of most diarrheagenic E. coli in Brazil, except for EAEC strains. These results emphasize the importance of the identification of the animal source of fecal contamination for the correct water risk assessment. © IWA Publishing 2011.
Editor: 
Rights: fechado
Identifier DOI: 10.2166/wh.2010.068
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-79954529547&partnerID=40&md5=dde4d6fdf0cfdb996f781784e582d97f
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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