Enteroadherent Escherichia coli Exhibiting Localized Pattern of Adherence among Infants with Diarrhoea in Brazil

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  • ブラジルの小児下痢症患者からの腸管付着性大腸菌 (局在性) の検出と分離菌の血清型
  • ブラジルの小児下痢患者からの腸管付着性大腸菌(局在性)の検出と分離菌の血清型
  • ブラジル ノ ショウニ ゲリ カンジャ カラ ノ チョウカン フチャクセイ ダ
  • Incidence and Prevalence of Serotypes

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Abstract

The incidence of enteroadherent Escheridhia coli exhibiting localized adherence to HeLa cells was investigated using the EAF probe (Nataro et al., J. Infect. Dis., 152: 560-563, 1985) among 126 infants below 3 years of age along with 126 age-matched healthy controls in Brazil. The EAF probe proved to be sensitive and specific in detection of enteroadherent E. coli. EAF-probe positive E. coli was isolated from 23.0% of the infants with acute diarrhoea while the corresponding rate of isolation from healthy controls was 11.9%. EAF-probe positive E. coli strains belonging to the classical enteropathogenic E. coli (EPEC) serogrpoups were more often associated with diarrheal cases (18.3%) than with strains isolated from control healthy infants (5.6%). The predominant EAF-probe positive E. coli serotypes were 055: H-, O111: H2 and O119: 116. These serotypes, especially O111: 112, were mainly isolated from cases with diarrhoea suggesting a strong causal association. Among the EAF positive non-EPEC serotypes, the most prevalent serotype was 088: 125 and this represents a, hitherto, unrecognized diarrheagenic E. coli serotype.

Journal

  • Kansenshogaku Zasshi

    Kansenshogaku Zasshi 66 (11), 1538-1542, 1992

    The Japanese Association for Infectious Diseases

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