Latex agglutination microtiter test for diagnosis of toxoplasma infection in animals

The assay kit of Toxoplasma latex agglutination (LA) microtiters (Toxotest and Toxocheck "Eiken") was applied for the diagnosis of Toxoplasma infection in pig, cat, dog and some rodents. Frequency distribution of the LA titers of pigs and cats showed a through at 1:32. The starting point of the reaction for positive diagnosis was 1:64 dilution in these animals and the kit was found to be practical and useful. Application of the kit to the diagnosis of dogs was not yet successful. The LA titer of experimentally infected mice and rabbits with Toxoplasma was detected from 1--2 weeks after infection. In wild rats caught in Sapporo City 26.1% had LA titers of 1:4 or more.