title: Toxoplasmosis among the Ticuna Indians in the state of Amazonas, Brazil.
abstract: Results of a serologic survey for Toxoplasma gondii among 408 Ticuna Indians from five villages in western Brazil are presented and compared with the results of 61 non-Indian inhabitants of the town of Codajas, Amazonas. Indirect hemagglutination antibody titers greater than or equal to 64 were found in 39% of the Ticuna population as compared to 77% of the Codajas population. Prevalence rates of titers greater than or equal to 256 were 20.3% for Ticunas and 39.3% for Codajas. Prevalence rates of titers greater than or equal to 256 in Ticuna villages where dietary habits were most variable were higher and more similar to those of non-Indian populations than were the prevalence rates of this titer range in villages where the animal food source was predominantly fish.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000906:Antibodies / Q000032:analysis; D001938:Brazil; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007199:Indians, South American; D007223:Infant; D008875:Middle Aged; D014123:Toxoplasmosis / Q000453:epidemiology* / Q000276:immunology
chemical_list: D000906:Antibodies