The traditional enteropathogenic Escherichia coli (EPEC) serogroup O125 comprises serotypes which are mainly associated with the category of enteroaggregative E. coli

Abstract Genotypic and phenotypic virulence markers of the different categories of diarrheagenic Escherichia coli were investigated in 76 strains of the enteropathogenic E. coli (EPEC) serogroup O125. The most frequent serotype found was O125ac:H21. None of the serotypes behaved as EPEC, i.e. carrie...

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Bibliographic Details
Published in:FEMS microbiology letters 1997-07, Vol.152 (1), p.95-100
Main Authors: Freitas do Valle, Glória Regina, Tardelli Gomes, Tânia A, Irino, Kinue, Trabulsi, Luiz R
Format: Article
Language:English
Subjects:
Bacterial pathogenesis
Deoxyribonucleic acid
Diarrhea
Diarrhea, Infantile - microbiology
DNA
E coli
Enteroaggregative Escherichia coli
Enteropathogenic Escherichia coli
Escherichia coli
Escherichia coli - classification
Gene sequencing
Humans
Infant
Infant, Newborn
Microbiology
Nucleotide sequence
O125
Serotypes
Serotyping
Strains (organisms)
Virulence
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Summary:Abstract Genotypic and phenotypic virulence markers of the different categories of diarrheagenic Escherichia coli were investigated in 76 strains of the enteropathogenic E. coli (EPEC) serogroup O125. The most frequent serotype found was O125ac:H21. None of the serotypes behaved as EPEC, i.e. carried the eaeA, bfpA, and EAF DNA sequences simultaneously and presented localized adherence to HeLa cells. All strains of O125ac:H6 were atypical EPEC since they carried eaeA only, and presented an indefinite pattern of adherence. All strains of O125ab:H9, O125ac:H9, O125?:H16, and O125ab:H21 and 79% of the O125ac:H21 strains were enteroaggregative E. coli, since they carried a specific DNA sequence and presented the typical aggregative adherence pattern.
ISSN:0378-1097
1574-6968
DOI:10.1111/j.1574-6968.1997.tb10414.x