Prevalencia de eschericia coli enterohemorrágico en una zona ganadera de Argentina: caracterización genotípica de las cepas de origen animal / Animal reservoir and genotipic characterization of enterohemorrhagic escherichia coli in Argentina
Rev. méd. Chile
; 128(12): 1335-41, dic. 2000. tab
Artigo
em Espanhol
| LILACS
| ID: lil-281992
Biblioteca responsável:
CL1.1
RESUMO
Background:
There is a high prevalence of infection by Enterohemorrhagic Escherichia coli (EHEC) and patients with hemolytic uremic syndrome (HUS) in Argentina.Aim:
To study cattle and pigs as a possible reservoir of EHEC in Argentina. Material andmethods:
One hundred two healthy animals (68 cattles and 31 pigs) from a livestock in Argentina, were studied. Stool samples were obtained with a rectal swab. The strains were identified by DNA hybridization with specific gene probes detecting Shiga-like toxin 1 and 2 (Stx1, Stx2), and hly gen related to fimbrial adhesin-associated plasmid. EHEC strains were serogrouped using comercial antisera.Results:
EHEC was isolated from 30 out of 68 bovines cultures (44.1 percent) and from 25 out of 31 pigs (58.1 percent). Isolates carrying genes codifying both Stx1 and Sxt2, were observed in 50 percent of cattle and 63.9 percent of pigs. The gene which codifies for hemolysin (associated to fimbrial adhesin) was observed in about 41 percent of EHEC isolates. Strains belonging to serogroups O26, O111, and O157 were isolated from cattle, and O111, and O157 from pigs.Conclusions:
The high percentage of EHEC in both cattle and pigs and the presence of human infection-associated serogroups, suggests that these animals are a reservoir of EHEC associated with disease in humans
Texto completo:
Disponível
Coleções:
Bases de dados internacionais
Contexto em Saúde:
Doenças Negligenciadas
Problema de saúde:
Doenças Negligenciadas
/
Zoonoses
Base de dados:
LILACS
Assunto principal:
Escherichia coli
/
Infecções por Escherichia coli
Tipo de estudo:
Estudo observacional
/
Estudo de prevalência
/
Fatores de risco
/
Estudo de rastreamento
Limite:
Animais
País/Região como assunto:
América do Sul
/
Argentina
Idioma:
Espanhol
Revista:
Rev. méd. Chile
Assunto da revista:
Medicina
Ano de publicação:
2000
Tipo de documento:
Artigo
/
Documento de projeto
País de afiliação:
Chile