Prevalence of anti-Toxoplasma gondii antibody in domestic horses in Japan |
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| Institution: | 1. Transboundary Animal Diseases Research Center, Joint Faculty of Veterinary Medicine, Kagoshima University, Korimoto 1-21-24, Kagoshima, Japan;2. Department of Veterinary Parasitological Diseases, Faculty of Applied Biological Sciences, Gifu University, Yanagido 1-1, Gifu, Japan;3. Department of Veterinary Clinical Theriogenology, Faculty of Applied Biological Sciences, Gifu University, Yanagido 1-1, Gifu, Japan;4. Yamatokohgen Animal Medical Clinic, Habikino, Osaka, Japan;1. National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido 080-8555, Japan;2. Department of Animal Medicine, Faculty of Veterinary Medicine, South Valley University, Qena City, Qena 83523, Egypt;3. Department of Parasitology, Faculty of Veterinary Medicine, University of Sadat City, 32511 Sadat City, Minoufiya, Egypt;4. Department of Parasitology, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt;5. Department of Animal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Kafr El-Sheikh University, 33516 Kafr El-Sheikh, Egypt;6. Department of Animal Hygiene and Zoonosis, Faculty of Veterinary Medicine, Sadat City University, 32511 Sadat City, Minoufiya, Egypt;7. Department of Animal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Mansoura University, 35516 Mansoura, Egypt;1. Risk Assessment Department, French Agency for Food, Environmental and Occupational Health & Safety (Anses), Maisons-Alfort, France |
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| Abstract: | The present study is the first report that investigated the seroprevalence of Toxoplasma gondii infection in domestic horses in various prefectures of Japan and analyzed risk factors for seropositivity. We performed a latex agglutination test for riding/racing horses from 11 prefectures in Japan (783 samples) and 4 groups of Japanese native horses (254 samples). The total seroprevalence of anti-T. gondii antibody in horses examined in this study was 4.24% (44/1037). As for riding/racing horses, we did not find a statistically different T. gondii seroprevalence between sampling prefectures. In contrast, seroprevalence of T. gondii in older horses (> 21 years) was significantly higher than that in younger horses (< 5 years and 11–15 years). There was no significant difference in T. gondii seroprevalence between riding/racing horses and Japanese native horses. Logistical regression analysis revealed that age, but not sex and usage, is a significant risk factor of T. gondii infection for domestic horses in Japan. These findings suggest that domesticated horses in Japan can be horizontally infected with T. gondii by ingestion of food or water contaminated with oocysts. |
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