Phenotypic and genotypic characteristics of shiga toxin-producing Escherichia coli strains isolated from children in São Paulo, Brazil

Phenotypic and genotypic characteristics of shiga toxin-producing Escherichia coli strains isolated from children in São Paulo, Brazil

Autor Guth, Beatriz Ernestina Cabilio Autor UNIFESP Google Scholar
Ramos, Sônia Rts Google Scholar
Cerqueira, Aloysio Mf Google Scholar
Andrade, João Ramos da Costa Google Scholar
Gomes, Tania Aparecida Tardelli Autor UNIFESP Google Scholar
Instituição 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
Resumo 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.
Palavra-chave Shiga toxin-producing Escherichia coli
serotype O111:NM -virulence factors
clinical manifestations
São Paulo
Brazil
Idioma Inglês
Data de publicação 2002-12-01
Publicado em Memórias do Instituto Oswaldo Cruz. Instituto Oswaldo Cruz, Ministério da Saúde, v. 97, n. 8, p. 1085-1089, 2002.
ISSN 0074-0276 (Sherpa/Romeo)
Publicador Instituto Oswaldo Cruz, Ministério da Saúde
Extensão 1085-1089
Fonte http://dx.doi.org/10.1590/S0074-02762002000800003
Direito de acesso Acesso aberto Open Access
Tipo Artigo
SciELO S0074-02762002000800003 (estatísticas na SciELO)
Endereço permanente http://repositorio.unifesp.br/handle/11600/1559

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