title: Epidemiological investigations on viral hepatitis in preschool and school communities. Note I. Prevalence and incidence of viral hepatitis and the role of the community in transmission.
abstract: A transversal and longitudinal epidemiological follow up was undertaken of the viral hepatitis cases occurring in two types of children communities (kindergartens and schools). The role of organized communities in the spread of hepatitis viruses and the contribution of external factors to the maintenance of hepatitis endemicity are discussed.
mesh_terms: D002648:Child; D002675:Child, Preschool; D004777:Environment; D005192:Family Health; D006525:Hepatitis, Viral, Human / Q000453:epidemiology* / Q000635:transmission; D006801:Humans; D006920:Hygiene; D012959:Socioeconomic Factors