
e-ISSN 1828-1427 |
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Rivista trimestrale di Sanità
Pubblica Veterinaria edita dall'Istituto Zooprofilattico Sperimentale
dell'Abruzzo e del Molise G. Caporale
A quarterly journal devoted to veterinary public health, veterinary science and medicine published by the Istituto Zooprofilattico Sperimentale dell’Abruzzo e del Molise ‘G. Caporale’ in Teramo, Italy |
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ISSUES ONLINE
2011 - Volume 47 (4), October-December |
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Massimo Giangaspero, Takeshi Osawa, Riccardo Orusa, Jean-Pierre Frossard, Brindha Naidu, Serena Robetto, Shingo Tatami, Eishu Takagi, Hiroaki Moriya, Norimoto Okura, Kazuo Kato, Atsushi Kimura & Ryô Harasawa |
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Epidemiological survey for visna-maedi among sheep in northern prefectures of Japan |
437-451 |
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Summary
Ovine sera collected from the northern Prefectures of Hokkaido, Iwate and Aomori in Japan, were examined for the presence of antibodies against visna-maedi virus using the agar gel immunodiffusion test and enzyme-linked immunosorbent assays. Three animals (1.12%), out of 267 samples tested, were found to be seropositive to the visna-maedi antigens in both tests. Levels of infection were found in flocks from Hokkaido and Iwate Prefectures, but not in the Aomori Prefecture. Nucleic acid detection by polymerase chain reaction on serum samples did not give positive results. Although no diagnostic measures were in place, the infection could not be related to losses in sheep production or to reduced survival rates. The very limited visna-maedi distribution indicates a highly favourable condition for the application of eradication strategies in this area.
Keywords
Japan, Sheep, Virus, Visna-maedi. |
Full article |
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