Prevalence and characteristics of the O122 pathogenicity island in typical and atypical enteropathogenic Escherichia coli strains

Mônica A M Vieira; Fábia A Salvador; Rosa M Silva; Kinue Irino; Tânia M I Vaz; Anna C Rockstroh; Beatriz E C Guth; Tânia A T Gomes

doi:10.1128/JCM.01944-09

Prevalence and characteristics of the O122 pathogenicity island in typical and atypical enteropathogenic Escherichia coli strains

J Clin Microbiol. 2010 Apr;48(4):1452-5. doi: 10.1128/JCM.01944-09. Epub 2010 Feb 24.

Authors

Mônica A M Vieira¹, Fábia A Salvador, Rosa M Silva, Kinue Irino, Tânia M I Vaz, Anna C Rockstroh, Beatriz E C Guth, Tânia A T Gomes

Affiliation

¹ Departamento de Microbiologia, Universidade Federal de São Paulo, São Paulo, Brazil. monica.vieira@unifesp.br

Abstract

The presence of the pathogenicity island (PAI) O122 genes, efa1 (lifA), sen, pagC, nleB, and nleE, in typical and atypical enteropathogenic Escherichia coli (EPEC) strains was investigated. The simultaneous occurrence of all genes was statistically associated with diarrhea due to atypical EPEC. Detection of the complete PAI O122 could aid in the identification of potential pathogenic strains of atypical EPEC.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

DNA, Bacterial / genetics*
Diarrhea / microbiology
Enteropathogenic Escherichia coli / genetics*
Enteropathogenic Escherichia coli / isolation & purification
Escherichia coli Infections / microbiology*
Escherichia coli Proteins / genetics
Genomic Islands*
Humans
Prevalence
Virulence Factors / genetics

Substances

DNA, Bacterial
Escherichia coli Proteins
Virulence Factors