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Volume 12, Number 4—April 2006
Research

Atypical Enteropathogenic Escherichia coli Infection and Prolonged Diarrhea in Children

Rang N. Nguyen*1, Louise S. Taylor*†, Marija Tauschek*†, and Roy M. Robins-Browne*†Comments to Author 
Author affiliations: *University of Melbourne, Parkville, Australia; †Murdoch Children's Research Institute, Parkville, Victoria, Australia

Main Article

Table 1

Classification of pathogenic Escherichia coli according to amplicon(s) generated by polymerase chain reaction (PCR) for virulence-associated determinants

Interpretation† Gene or virulence-associated determinant*
pCVD432 aggA bfpA eae ipaC stIA ltA ehxA stx1 stx2 Control strain (reference)
EAEC‡ + + – – – – – – – – O42 (13)
Typical EPEC – – + + – – – – – – E2348/69 (14)
Atypical EPEC – – – + – – – – – – E128012 (14)
EIEC – – – – + – – – – – 223/83 (15)
ETEC‡ – – – – – + + – – – H10407 (16)
EHEC§ – – – + – – – + + + EDL933 (17)
STEC not EHEC¶ – – – – – – – – + +

*Factors specified by virulence genes: aggA, aggregative fimbria, AAF/I; bfpA, bundle-forming pilus; eae, intimin; ipaC, invasion plasmid antigen; stIA, heat-stable enterotoxin; ltA, heat-labile enterotoxin; ehxA, EHEC hemolysin; stx, Shiga toxin.
†EAEC, enteroaggregative E. coli; EPEC, enteropathogenic E. coli; EIEC, enteroinvasive E. coli; ETEC, enterotoxigenic E. coli; STEC, Shiga toxin–producing E. coli; EHEC, enterohemorrhagic E. coli.
‡Either positive by polymerase chain reaction.
§Either eae or ehxA, and either stx1 or stx2 positive.
¶Either stx1 or stx2 positive.

Main Article

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Main Article

1Present address: An Giang General Hospital, Long Xuyen City, An Giang, Vietnam.

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