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Revista do Instituto de Medicina Tropical de São Paulo
Print version ISSN 0036-4665
PANNUTI, Claudio Sergio et al. Hepatitis A antibodies in two socioeconomically distinct populations of São Paulo, Brazil. Rev. Inst. Med. trop. S. Paulo [online]. 1985, vol.27, n.3, pp. 162-164. ISSN 0036-4665. http://dx.doi.org/10.1590/S0036-46651985000300009.
To evaluate the prevalence of antibody against hepatitis A in two socioeconomically distinct populations of a developing country, 540 serum specimens from children and adults living in São Paulo, Brazil, were tested for IgG anti HAV by a commercial radioimunoassay (Havab, Abbott Laboratories). The prevalence of anti-HAV in low socioeconomic level subjects was 75.0% in children 2-11 years old and 100.0% in adults, whereas in middle socioeconomic level significantly lower prevalences were observed (40.3% in chidren 2-11 years old and 91.9% in adults). Voluntary blood donors of middle socioeconomic level showed a prevalence of 90.4%. These data suggest that hepatitis A infection remains a highly endemic disease in São Paulo, Brazil.