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Asymptomatic infections by diarrheagenic Escherichia coli in children from Misiones, Argentina, during the first twenty months of their lives
Quiroga A., Marina; Oviedo, Patricia; Chinen, Isabel; Pegels, Eduardo; Husulak, Elizabeth; Binztein, Norma; Rivas, Marta; Schiavoni, Lydia; Vergara, Marta.
Affiliation
  • Quiroga A., Marina; National University of Misiones.
  • Oviedo, Patricia; National University of Misiones.
  • Chinen, Isabel; Anlis, National Institute of Infectious Diseases.
  • Pegels, Eduardo; National University of Misiones.
  • Husulak, Elizabeth; National University of Misiones.
  • Binztein, Norma; ANLIS, National Institute of Infectious Diseases.
  • Rivas, Marta; ANLIS, National Institute of Infectious Diseases.
  • Schiavoni, Lydia; National University of Misiones.
  • Vergara, Marta; National University of Misiones.
Rev. Inst. Med. Trop. Säo Paulo ; 42(1): 9-15, Jan.-Feb. 2000. tab, graf
Article in En | LILACS | ID: lil-254823
Responsible library: BR1.1
ABSTRACT
Diarrheagenics Escherichia coli are the major agents involved in diarrheal disease in developing countries. The aim of this study was to evaluate the time of appearance of the first asymptomatic infection by the different categories of diarrheagenic E. coli in 44 children since their birth and during the first 20 months of their lives. In all of the children studied, we detected at least one category of diarrheagenic E. coli through the 20 months of the study. 510 diarrheagenic E. coli (33.5 percent) were obtained from the 1,524 samples collected from the 44 children during the time of the study (31.4 percent EAggEC, 28.8 percent EPEC, 27.1 percent DAEC, and 12.7 percent ETEC). Neither EHEC nor EIEC were identified. The median age for diarrheagenic E. coli colonization was 7.5 months. The mean weaning period was 12.8 months and the mean age for introduction of mixed feeding (breast fed supplemented) was 3.8 months. A significantly lower incidence of diarrheal disease and asymptomatic infections was recorded among the exclusively breast-fed rather than in the supplemented and non breast-fed infants. For ETEC, EPEC and EAggEC the introduction of weaning foods and complete termination of breast-feeding were associated with an increase of asymptomatic infections
Subject(s)
Full text: 1 Index: LILACS Main subject: Diarrhea, Infantile / Escherichia coli Infections Type of study: Etiology_studies / Observational_studies / Prognostic_studies / Risk_factors_studies Limits: Humans / Infant / Newborn Country/Region as subject: America do sul / Argentina Language: En Journal: Rev. Inst. Med. Trop. Säo Paulo Journal subject: MEDICINA TROPICAL Year: 2000 Type: Article
Full text: 1 Index: LILACS Main subject: Diarrhea, Infantile / Escherichia coli Infections Type of study: Etiology_studies / Observational_studies / Prognostic_studies / Risk_factors_studies Limits: Humans / Infant / Newborn Country/Region as subject: America do sul / Argentina Language: En Journal: Rev. Inst. Med. Trop. Säo Paulo Journal subject: MEDICINA TROPICAL Year: 2000 Type: Article