title: Evidence of pathogenic subgroups among atypical enteropathogenic Escherichia coli strains.
abstract: We describe the characterization of 126 atypical enteropathogenic Escherichia coli (aEPEC) isolates from 1,749 Brazilian children. Classic aEPEC strains were more frequently found in children with diarrhea than in controls (P < 0.001), showing their importance as acute diarrhea agents in our country. Only aEPEC strains carrying either the ehxA or paa gene were significantly associated with diarrhea.
authors.affiliation: Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São Paulo, Rua Botucatu, 862, 3 andar, 04023-062 São Paulo SP, Brazil. scaletsky@unifesp.br
authors.forename: Isabel C A
authors.initials: IC
authors.lastname: Scaletsky
authors.forename: Katia R S
authors.initials: KR
authors.lastname: Aranda
authors.forename: Tamara B
authors.initials: TB
authors.lastname: Souza
authors.forename: Neusa P
authors.initials: NP
authors.lastname: Silva
authors.forename: Mauro B
authors.initials: MB
authors.lastname: Morais
mesh_terms: D001938:Brazil; D017931:DNA Primers / Q000235:genetics; D004269:DNA, Bacterial / Q000235:genetics; D003967:Diarrhea / Q000382:microbiology*; D054308:Enteropathogenic Escherichia coli / Q000145:classification* / Q000472:pathogenicity*; D004927:Escherichia coli Infections / Q000382:microbiology*; D029968:Escherichia coli Proteins / Q000235:genetics; D005838:Genotype; D006460:Hemolysin Proteins / Q000235:genetics; D006801:Humans; D007223:Infant; D012703:Serotyping; D037521:Virulence Factors / Q000235:genetics
chemical_list: D017931:DNA Primers; D004269:DNA, Bacterial; D029968:Escherichia coli Proteins; D006460:Hemolysin Proteins; C036507:Hlya protein, E coli; C520614:Paa protein, E coli; D037521:Virulence Factors