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Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, Kameino 1866, Fujisawa, Kanagawa 252-8510, Japan.

Abstract - The prevalence of Toxoplasma gondii was surveyed in wild boars (Sus scrofa leucomystax) and domiciled cats obtained in various areas of Amakusa Island, Kumamoto Prefecture, Japan. The antibody titers against T. gondii were measured with a latex agglutination test. Among specimens taken from 90 wild boars, 1 (1.1%) was positive and 3 (3.3%) were doubtfully positive. Among the specimens from 50 cats, none were positive and 1 (3.3%) was doubtfully positive. These results suggest that the wild boars and cats on Amakusa Island have quite low prevalence of the T. gondii infection. Continuous surveys will be needed to monitor the prevalence of Toxoplasmosis and other zoonoses in game animals.