Wild birds and urban pigeons as reservoirs for diarrheagenic Escherichia coli with zoonotic potential

Autor(es)

Borges, Clarissa A. ; Cardozo, Marita V. ; Beraldo, Livia G. ; Oliveira, Elisabete S. ; Maluta, Renato P. ; Barboza, Kaline B. ; Werther, Karin ; Avila, Fernando A.

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF MICROBIOLOGY; v. 55, n. 5, p. 344-348, MAY 2017.
• Citações Web of Science: 11

Resumo

In order to describe the role of wild birds and pigeons in the transmission of shiga toxigenic Escherichia coli (STEC) and enteropathogenic Escherichia coli (EPEC) to humans and other animals, samples were collected from cloacae and oropharynx of free-living wild birds and free-living pigeons. Two STEC (0.8%) and five EPEC strains (2.0%) were isolated from wild birds and four EPEC strains (2.0%) were recovered from pigeons. Serogroups, sequence types (STs) and virulence genes, such as saa, iha, lpfA(O113), ehxA, espA, nleB and nleE, detected in this study had already been implicated in human and animal diseases. Multidrug resistance (MDR) was found in 25.0% of the pigeon strains and in 57.0% of the wild bird strains; the wild birds also yielded one isolate carrying extended-spectrum beta-lactamases (ESBLs) gene bla(CTX-M-8). The high variability shown by PFGE demonstrates that there are no prevalent E. coli clones from these avian hosts. Wild birds and pigeons could act as carriers of multidrug-resistant STEC and EPEC and therefore may constitute a considerable hazard to human and animal health by transmission of these strains to the environment. (AU)

• Processo FAPESP: 08/00417-0 - Caracterização bioquímica, sorológica e genotípica de cepas de Escherichia coli isoladas de água, fezes e carcaças de ovinos criados no estado de São Paulo, Brasil
• Beneficiário: Renato Pariz Maluta
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 10/12002-0 - Detecção e caracterização de STEC, EPEC e APEC em aves selvagens e pombos na cidade de Jaboticabal-SP
• Beneficiário: Fernando Antonio de Avila
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 11/06467-2 - Detecção e caracterização de Escherichia coli (APEC) em aves selvagens e pombos (Columba livia) na cidade de Jaboticabal-SP
• Beneficiário: Clarissa Araújo Borges
• Modalidade de apoio: Bolsas no Brasil - Doutorado