First demonstration of bovine herpesvirus 2 infection among cattle by neutralization test in Japan |
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| Authors: | Imai Kunitoshi Ishihara Ryoko Nishimori Tomoko |
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| Institution: | Hokkaido Research Station, National Institute of Animal Health, 4 Hitsujigaoka, Toyoshira, Sapporo, Hokkaido 062-0045, Japan. |
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| Abstract: | Seroepidemiological surveys were performed on neutralizing antibody to bovine herpesvirus 2 (BoHV-2) among cattle in Japan. A total of 1,819 sera were collected from cattle in 27 prefectures from 1997 to 1998. Antibodies were detected in only 18 sera collected from 4 prefectures. However, the most prevalent areas of the infection were found in two islands located in the subtropical zone. Additional 353 sera were collected in three including these islands in 1999-2001.The antibody-positive rates in the farms in these islands ranged from 10% to 81.1%. It was confirmed that BoHV-2 was prevalent in these areas. However, the infection seemed to be latent, because no diseases have been noticed. This is the first report showing the presence of BoHV-2 infection among cattle in Japan. |
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