tailieunhanh - Báo cáo khoa học: " Porcine abortion outbreak associated with Toxoplasma gondii in Jeju Island, Korea"

Tuyển tập các báo cáo nghiên cứu khoa học quốc tế về bệnh thú y đề tài: Porcine abortion outbreak associated with Toxoplasma gondii in Jeju Island, Korea | J. Vet. Sci. 2009 10 2 147-151 DOI JOURNAL OF Veterinary Science Porcine abortion outbreak associated with Toxoplasma gondii in Jeju Island Korea 1 2 3 4 4 1-5 Jae-Hoon Kim Kyung-Il Kang Wan-Cheul Kang Hyun-Joo Sohn Young-Hwa Jean Bong Kyun Park Yongbaek Kim6 Dae-Yong Kim5 College of Veterinary Medicine Jeju National University Jeju 690-756 Korea 2Department of Veterinary Pathology College of Veterinary Medicine University of Georgia Athens GA 30602-7388 USA Jeju Veterinary Research Institute Jeju 690-962 Korea 4National Veterinary Research and Quarantine Service Anyang 430-824 Korea 5College of Veterinary Medicine Seoul National University Seoul 151-742 Korea 6College of Veterinary Medicine North Carolina State University Raleigh NC 27606 USA This report deals with the acute onset of an abortion outbreak and high sow mortality in one pig herd consisted of 1 200 pigs and 120 sows on Jeju Island Korea. Affected pregnant sows showed clinical signs including high fever gradual anorexia vomiting depression recumbency prostration abortion and a few deaths. Four dead sows five aborted fetuses from the same litter and 17 sera collected from sows infected or normal were submitted to the Pathology Division of the National Veterinary Research and Quarantine Service for diagnostic investigation. Grossly hepatomegaly and splenomegaly were observed in sows. Multiple necrotic foci were scattered in the lungs liver spleen and lymph nodes. Microscopically multifocal necrotizing lesions and protozoan tachyzoites were present in the lesions. Tachyzoites of Toxoplasma T. gondii were detected immunohistochemically. Latex agglutination showed that the sera of 7 of 17 sows were positive for antibody to T. gondii. The disease outbreak in this herd was diagnosed as epizootic toxoplasmosis. To our knowledge this is the first report of porcine toxoplasmosis with a high abortion rate and sow mortality in Korea. Keywords abortion pig sow mortality tachyzoite .