Serological examination of goats and dogs in New Zealand for antibodies against Toxoplasma gondii with the latex agglutination test (LAT) and the indirect immunofluorescence antibody test (IFAT)

Opel, U.

Serologische Untersuchungen auf Toxoplasma Antikorper mit dem Indirekten Immunofluoreszenztest IFAT und dem Latexagglutinationstest LAT bei Ziegen und Hunden in Neuseeland: 103


Accession: 001682729

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Sera from 185 goats were examined by LAT and IFAT for T. gondii antibodies. The results of the 2 tests coincided in 96% of cases when differences of up to 2 dilution steps were ignored. In 1984-1985, 298 sera from the North Island of New Zealand were examined by LAT using the Toxo-reagent-Eiken-Test. 25% have specific titres of 1:64 to T. gondii. Infection rates were similar for males and females but increased with age from 7% in 2- to 6-month-old kids to 37% in goats aged >2 years and was significantly higher in milking breeds than in fibre goats. When 100 sera of dogs in New Zealand were examined by both tests, a correlation of only 0.645 was obtained. The LAT titres were difficult to interpret. IFAT gave positive titres of 1:32 in 61%. The infection ratewas again similar for male and female dogs but increased with age.