title: Studies on the prevalence of antibodies to Toxoplasma gondii. 2. Brazil.
mesh_terms: D000293:Adolescent; D000328:Adult; D000531:Altitude; D000906:Antibodies / Q000032:analysis*; D001938:Brazil; D004463:Ecology; D006386:Hemagglutination Tests; D006801:Humans; D008297:Male; D008751:Methylene Blue; D009790:Occupations; D014123:Toxoplasmosis / Q000453:epidemiology*
chemical_list: D000906:Antibodies; D008751:Methylene Blue