Production of cytolethal distending toxin and other virulence characteristics of Escherichia coli strains of serogroup O86
Mem. Inst. Oswaldo Cruz
;
96(5): 703-708, July 2001. ilus, graf, tab
Article
in English
| LILACS
| ID: lil-289361
RESUMO
Genetic and phenotypic virulence markers of different categories of diarrhoeagenic Escherichia coli were investigated in 106 strains of enteropathogenic E. coli (EPEC) serogroup O86. The most frequent serotype found was O86:H34 (86 percent). Strains of this serotype and the non motile ones behaved as EPEC i.e., carried eae, bfpA and EAF DNA sequences and presented localised adherence to HeLa cells. Serotypes O86:H2, O86:H6, O86:H10, O86:H18, O86:H27 and O86:H non determined, belonged to other categories. The majority of the strains of serotype O86:H34 and non motile strains produced cytolethal-distending toxin (CDT). The ribotyping analysis showed a correlation among ribotypes, virulence markers and serotypes, thus suggesting that CDT production might be a property associated with a universal clone represented by the O86:H34 serotype
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Bacterial Toxins
/
Diarrhea
/
Escherichia coli
Limits:
Child
/
Humans
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
2001
Type:
Article
/
Project document
Affiliation country:
Brazil
Institution/Affiliation country:
Instituto Adolfo Lutz/BR
/
Instituto Butantä/BR
/
Universidade Federal de Säo Paulo/BR
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