Reactivity and prevalence of neutralizing antibodies against Japanese strains of bovine viral diarrhea virus subgenotypes

被引:21
|
作者
Minami, Fujiko [2 ]
Nagai, Makoto [3 ]
Ito, Mika [2 ]
Matsuda, Tatsuhiko [4 ]
Takai, Hikaru [4 ]
Jinkawa, Yoshiko [4 ]
Shimano, Takeshi [2 ]
Hayashi, Michiko [3 ]
Seki, Yoshihisa [5 ]
Sakoda, Yoshihiro [6 ]
Sugiura, Katsuaki [7 ]
Akashi, Hiroomi [1 ]
机构
[1] Univ Tokyo, Dept Vet Microbiol, Grad Sch Agr & Life Sci, Bunkyo Ku, Tokyo 1138657, Japan
[2] Ishikawa Nanbu Livestock Hyg Serv Ctr, Kanazawa, Ishikawa 9203101, Japan
[3] Ishikawa Prefectural Livestock Res Ctr, Hodatsushimizu, Ishikawa 9291325, Japan
[4] Ishikawa Hokubu Livestock Hyg Serv Ctr, Nanao, Ishikawa 9292126, Japan
[5] Iwate Prefecture Cent Livestock Hyg Serv Ctr, Takizawa, Iwate 0200173, Japan
[6] Hokkaido Univ, Microbiol Lab, Dept Dis Control, Grad Sch Vet Med, Sapporo, Hokkaido 0600818, Japan
[7] Food & Agr Mat Inspect Ctr, Chuo Ku, Saitama 3309731, Japan
关键词
Antigenic difference; Bovine viral diarrhea virus; Epidemic virus; Neutralization test; Subgenotype; PERSISTENT INFECTION; GENETIC DIVERSITY; GENUS PESTIVIRUS; MUCOSAL DISEASE; CATTLE; BVDV; IDENTIFICATION; SUBSTITUTIONS; CONSEQUENCES;
D O I
10.1016/j.cimid.2009.10.007
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
Bovine viral diarrhea virus (BVDV) field isolates show genetic and antigenic diversity. At least 14 subgenotypes of BVDV-1 and 4 of BVDV-2 have been identified in Artiodactyla worldwide. Of these, 6 subgenotypes of BVDV-1 and 1 of BVDV-2 have been isolated in Japan. Previously, we reported that each subgenotype virus expresses different antigenic characteristics. Here we investigated the reactivity of neutralizing antibodies against representative strains of Japanese BVDV subgenotypes using sera from 266 beef cattle to estimate the prevalence of this epidemic virus among cattle in Japan. Antibody titers at concentrations at least 4-fold higher than antibodies against other subgenotype viruses were considered subgenotype specific. Subgenotype-specific antibodies were detected from 117(80.7%) of 145 sera samples (69.7% against BVDV-1a, 1.4% against BVDV-1b, 8.3% against BVDV-1c, and 1.4% against BVDV-2a). The results suggest that neutralization tests are useful in estimating currently epidemic subgenotypes of BVDV in the field. (C) 2009 Elsevier Ltd. All rights reserved.
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页码:35 / 39
页数:5
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