| Registro completo |
| Provedor de dados: |
BJM
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| País: |
Brazil
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| Título: |
Diffuse and enteroaggregative patterns of adherence of Escherichia coli isolated from stools of children in northeastern Brazil
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| Autores: |
Scaletsky,Isabel Cristina Affonso
Fabbricotti,Sandra Hilde
Carvalho,Rozane de Lima Bigelli
Nunes,Claudia Regina
Maranhão,Helcio de Sousa
Morais,Mauro Batista de
Riley,Lee
Fagundes-Neto,Ulysses
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| Data: |
2001-12-01
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| Ano: |
2001
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| Palavras-chave: |
Escherichia coli
Diffusely adherent E. coli
Enteroaggregative E. coli
Adherence patterns
Childhood diarrhea
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| Resumo: |
Childhood diarrheal diseases remain highly endemic in northeastern Brazil. The attributable fraction of all diarrheal diseases among children less than 2 years of age due to Escherichia coli was examined in a 2-year prospective study in two large urban centers of Brazil. Between May 1997 and June 1999, fecal E. coli isolates from 237 children with diarrhea (217 acute and 20 persistent cases) and 231 children without diarrhea (controls) attending two hospitals in Northeast Brazil were tested for their pattern of adherence to HEp-2 cells and for colony hybridization with DNA probes specific for the six pathotypes of diarrheagenic E. coli. Enteroinvasive E. coli, enterotoxigenic E. coli and enterohemorrhagic E. coli were not isolated from any children. Diffusely adherent E. coli (DAEC) and enteroaggregative E. coli (EAEC) were the most frequent isolates with similar frequencies from children with or without diarrhea. Atypical EPEC (EAF-negative) strains were isolated with similiar frequency from both cases (5.5%) and controls (5.6%). Enteropathogenic E. coli (typical EPEC) strains, characterized by localized adherence pattern of adherence, hybridization with the EAF probe, and belonging to the classical O serogroups, were significantly associated with diarrhea (P = 0.03). These E. coli strains associated with diarrhea accounted for 9% of all children with diarrhea. Collectively, in Northeast Brazil, E. coli strains comprise a small proportion of severe diarrhea prevalence in children.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822001000400012
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| Editor: |
Sociedade Brasileira de Microbiologia
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| Relação: |
10.1590/S1517-83822001000400012
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| Formato: |
text/html
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| Fonte: |
Brazilian Journal of Microbiology v.32 n.4 2001
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| Direitos: |
info:eu-repo/semantics/openAccess
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