Please use this identifier to cite or link to this item: https://repositorio.unifesp.br/handle/11600/1559
Title: Phenotypic and genotypic characteristics of shiga toxin-producing Escherichia coli strains isolated from children in São Paulo, Brazil
Authors: Guth, Beatriz Ernestina Cabilio [UNIFESP]
Ramos, Sônia Rts
Cerqueira, Aloysio Mf
Andrade, João Ramos da Costa
Gomes, Tania Aparecida Tardelli [UNIFESP]
Universidade Federal de São Paulo (UNIFESP)
Universidade de São Paulo (USP)
Universidade Estadual do Rio de Janeiro
Universidade Federal Fluminense Departamento de Microbiologia e Parasitologia
Keywords: Shiga toxin-producing Escherichia coli
serotype O111:NM -virulence factors
clinical manifestations
São Paulo
Brazil
Issue Date: 1-Dec-2002
Publisher: Instituto Oswaldo Cruz, Ministério da Saúde
Citation: Memórias do Instituto Oswaldo Cruz. Instituto Oswaldo Cruz, Ministério da Saúde, v. 97, n. 8, p. 1085-1089, 2002.
Abstract: The biochemical and serological characteristics, virulence properties, and genetic relatedness of Shiga toxin-producing Escherichia coli (STEC) strains isolated in São Paulo, from April 1989 through March 1990, were determined. This is also the first report on clinic findings of human STEC infections in Brazil. The only three STEC strains identified in that period were lysine decarboxylase negative, belonged to serotype O111ac: non-motile, were Stx1 producers, carried the eae and astA genes, and 2 of them also presented the EHEC-hly sequence. The children carrying STEC were all boys, with less than two years old, and had no previous history of hospitalization. None of them presented blood in stools. Vomiting, cough and coryza were the most common clinical manifestations observed. Although the STEC strains were isolated during summer months, and presented similar phenotypic and genotypic characteristics, carbohydrate fermentation patterns and PFGE analysis suggested that these diarrheal episodes were not caused by a single clone.
URI: http://repositorio.unifesp.br/handle/11600/1559
ISSN: 0074-0276
Other Identifiers: http://dx.doi.org/10.1590/S0074-02762002000800003
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