Clonal relationship among atypical enteropathogenic Escherichia coli strains isolated from different animal species and humans. / Estudo das relações clonais entre amostras de Escherichia coli enteropatogênica atípica de origem animal e humana.

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

Forty-nine typical and atypical EPEC strains belonging to different serotypes, isolated from humans, pets (cats and dogs), farm (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. Close clonal relationship between human and animal isolates was found with 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.

ASSUNTO(S)

bacterial infections gram-negative typical epec diarrhea epec atípica mlst pfge pfge infecções bacterianas gram-negativas epec típica escherichia coli mlst diarréia escherichia coli atypical epec

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