title: Age-specific Helicobacter pylori seropositivity rates of children in an impoverished urban area of northeast Brazil.
abstract: We determined age-specific Helicobacter pylori seropositivity rates of 166 children and 39 mothers in an urban shantytown in northeast Brazil. Seropositivity rates increased from 23.1% at 0 to 11 months of age to only 39.3% by 96 to 131 months of age and were 82.1% at maturity. We observed no correlation between the seropositivity of the mothers and the seropositivity of their children.
authors.affiliation: Department of Microbiology, University of Virginia, Charlottesville, Virginia 22908, USA. rlg9a@virginia.edu
authors.forename: Anastasia
authors.initials: A
authors.lastname: Mitchell
authors.forename: Terezinha M J
authors.initials: TM
authors.lastname: Silva
authors.forename: Leah J
authors.initials: LJ
authors.lastname: Barrett
authors.forename: Aldo A M
authors.initials: AA
authors.lastname: Lima
authors.forename: Richard L
authors.initials: RL
authors.lastname: Guerrant
mesh_terms: D000367:Age Factors; D000942:Antigens, Bacterial / Q000276:immunology; D001938:Brazil; D002675:Child, Preschool; D005260:Female; D016481:Helicobacter Infections / Q000453:epidemiology* / Q000276:immunology; D016480:Helicobacter pylori / Q000276:immunology / Q000302:isolation & purification*; D006801:Humans; D007223:Infant; D012698:Serologic Tests
chemical_list: D000942:Antigens, Bacterial