Literature DB >> 19801470

Clonal relationship among atypical enteropathogenic Escherichia coli strains isolated from different animal species and humans.

Rodrigo A Moura1, Marcelo P Sircili, Luciana Leomil, Maria Helena Matté, Luiz R Trabulsi, Waldir P Elias, Kinue Irino, Antonio F Pestana de Castro.   

Abstract

Forty-nine typical and atypical enteropathogenic Escherichia coli (EPEC) strains belonging to different serotypes and isolated from humans, pets (cats and dogs), farm animals (bovines, sheep, and rabbits), and wild animals (monkeys) were investigated for virulence markers and clonal similarity by pulsed-field gel electrophoresis (PFGE) and multilocus sequence typing (MLST). The virulence markers analyzed revealed that atypical EPEC strains isolated from animals have the potential to cause diarrhea in humans. A close clonal relationship between human and animal isolates was found by MLST and PFGE. These results indicate that these animals act as atypical EPEC reservoirs and may represent sources of infection for humans. Since humans also act as a reservoir of atypical EPEC strains, the cycle of mutual infection of atypical EPEC between animals and humans, mainly pets and their owners, cannot be ruled out since the transmission dynamics between the reservoirs are not yet clearly understood.

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Year:  2009        PMID： 19801470      PMCID： PMC2786407          DOI： 10.1128/AEM.00636-09

Source DB:  PubMed          Journal:  Appl Environ Microbiol        ISSN： 0099-2240            Impact factor:   4.792


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