Phenotypic and genotypic characteristics of shiga toxin-producing Escherichia coli strains isolated from children in São Paulo, Brazil
Mem. Inst. Oswaldo Cruz
;
97(8): 1085-1089, Dec. 15, 2002. ilus, tab
Artigo
em Inglês
| LILACS
| ID: lil-326338
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
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Toxina Shiga
/
Diarreia
/
Escherichia coli
/
Infecções por Escherichia coli
Tipo de estudo:
Estudo observacional
/
Estudo prognóstico
Limite:
Criança, pré-escolar
/
Feminino
/
Humanos
/
Lactente
/
Masculino
País/Região como assunto:
América do Sul
/
Brasil
Idioma:
Inglês
Revista:
Mem. Inst. Oswaldo Cruz
Assunto da revista:
Medicina Tropical
/
Parasitologia
Ano de publicação:
2002
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Universidade Estadual do Rio de Janeiro/BR
/
Universidade Federal Fluminense/BR
/
Universidade Federal de São Paulo/BR
/
Universidade de São Paulo/BR
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