title: [Prevalence of hepatitis A and E virus infection in school children of an Amazonian municipality in Mato Grosso State].
abstract: The prevalence of antibodies to hepatitis A anti-HAV total and E viruses anti-HEV IgG was assessed in 487 children ranging from 2 to 9 years old who were students of nurseries and public schools in a county of the Amazonian region, in Mato Grosso State, Brazil. The anti-HAV and anti-HEV prevalence were 86.4% (CI 95% 83 - 89.3) and 4.5% (CI95% 2.9 - 6.9), respectively. The anti-HAV prevalence was high in all ages, suggesting that this is an area of high endemicity for HAV infection. There was no association between the anti-HAV markers and gender, socioeconomic level, parental educational level, hygienic conditions, number or density of residents per room or schools in which they studied. Anti-HEV prevalence was low and similar to that found among adults in another Brazilian regions.
authors.affiliation: Departamento de Pediatria e Clínica Médica, Faculdade de Medicina, Universidade Federal do Mato Grosso, Rio de Janeiro, Brasil. sandrassis@terra.com.br
authors.forename: Sandra Breder
authors.initials: SB
authors.lastname: Assis
authors.forename: Francisco José Dutra
authors.initials: FJ
authors.lastname: Souto
authors.forename: Cor Jesus Fernandes
authors.initials: CJ
authors.lastname: Fontes
authors.forename: Ana Maria Coimbra
authors.initials: AM
authors.lastname: Gaspar
mesh_terms: D001938:Brazil / Q000453:epidemiology; D016022:Case-Control Studies; D002648:Child; D002675:Child, Preschool; D005260:Female; D006506:Hepatitis A / Q000453:epidemiology*; D016751:Hepatitis E / Q000453:epidemiology*; D006801:Humans; D008297:Male; D015995:Prevalence