Prevalence of diarrheagenic Escherichia coli in children with diarrhea in Salvador, Bahia, Brazil

Prevalence of diarrheagenic Escherichia coli in children with diarrhea in Salvador, Bahia, Brazil

Author Franzolin, Marcia Regina Google Scholar
Alves, Rosely Cabette Barbosa Google Scholar
Keller, Rogéria Google Scholar
Gomes, Tania Aparecida Tardelli Autor UNIFESP Google Scholar
Beutin, Lothar Google Scholar
Barreto, Mauricio Lima Google Scholar
Milroy, Craig Google Scholar
Strina, Agostino Google Scholar
Ribeiro, Hugo Google Scholar
Trabulsi, Luiz Rachid Google Scholar
Institution Instituto Butantan Laboratório Especial de Microbiologia
Universidade Federal de São Paulo (UNIFESP)
Robert Koch Institut Division of Emerging Bacterial Pathogens
Instituto de Saúde Coletiva
Universidade Federal da Bahia Departamento de Pediatria
Abstract We report the frequency of the different diarrheagenic Escherichia coli (DEC) categories isolated from children with acute endemic diarrhea in Salvador, Bahia. The E. coli isolates were investigated by colony blot hibridization whit the following genes probes: eae, EAF, bfpA, Stx1, Stx2, ST-Ih, ST-Ip, LT-I, LT-II, INV, and EAEC, as virulence markers to distinguish typical and atypical EPEC, EHEC/STEC, ETEC, EIEC, and EAEC. Seven of the eight categories of DEC were detected. The most frequently isolated was atypical EPEC (10.1%) followed by ETEC (7.5%), and EAEC (4.2%). EHEC, STEC, EIEC, and typical EPEC were each detected once. The strains of ETEC, EAEC, and atypical EPEC belonged to a wide variety of serotypes. The serotypes of the others categories were O26:H11 (EHEC), O21:H21 (STEC), O142:H34 (typical EPEC), and O?H55 (EIEC). We also present the clinical manifestations and other pathogenic species observed in children with DEC. This is the first report of EHEC and STEC in Salvador, and one of the first in Brazil.
Keywords typical and atypical enteropathogenic Escherichia coli (EPEC)
Shiga toxin producing E. coli (STEC)
virulence factors
Language English
Date 2005-07-01
Published in Memórias do Instituto Oswaldo Cruz. Instituto Oswaldo Cruz, Ministério da Saúde, v. 100, n. 4, p. 359-363, 2005.
ISSN 0074-0276 (Sherpa/Romeo)
Publisher Instituto Oswaldo Cruz, Ministério da Saúde
Extent 359-363
Access rights Open access Open Access
Type Article
SciELO ID S0074-02762005000400004 (statistics in SciELO)

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