title: Age-sex distribution of Toxoplasma antibody in the South Australian population.
abstract: Sera from 1071 patients in nine age categories were screened for Toxoplasma antibody by indirect immunofluorescence. Thirty per cent of the sera contained antibody at a titre greater than or equal to 1/16. The percentage of sera containing antibody rose from 3% in the 6 months--5 years age group to a maximum of about 40% in the 31--40 years age group. It remained constant thereafter. Eleven per cent of the 84 sera with Toxoplasma antibody titres greater than or equal to 1/128 had Toxoplasma IgM titres greater than or equal to 1/32. No significant difference was found in the possession of antibody between the sexes.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000906:Antibodies / Q000302:isolation & purification*; D001315:Australia; D002648:Child; D002675:Child, Preschool; D005260:Female; D005455:Fluorescent Antibody Technique; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D012737:Sex Factors; D014122:Toxoplasma / Q000276:immunology*
chemical_list: D000906:Antibodies