Title: | Genetic and antigenic characterization of bovine viral diarrhea viruses isolated from cattle in Hokkaido, Japan |
Authors: | Abe, Yuri Browse this author |
Tamura, Tomokazu Browse this author |
Torii, Shiho Browse this author |
Wakamori, Shiho Browse this author |
Nagai, Makoto Browse this author |
Mitsuhashi, Kazuya Browse this author |
Mine, Junki Browse this author |
Fujimoto, Yuri Browse this author |
Nagashima, Naofumi Browse this author |
Yoshino, Fumi Browse this author |
Sugita, Yukihiko Browse this author |
Nomura, Takushi Browse this author |
Okamatsu, Masatoshi Browse this author →KAKEN DB |
Kida, Hiroshi Browse this author →KAKEN DB |
Sakoda, Yoshihiro Browse this author →KAKEN DB |
Keywords: | antigenicity |
bovine viral diarrhea virus |
E2 |
genetic diversity |
Issue Date: | Jan-2016 |
Publisher: | The Japanese Society of Veterinary Science |
Journal Title: | Journal of Veterinary Medical Science |
Volume: | 78 |
Issue: | 1 |
Start Page: | 61 |
End Page: | 70 |
Publisher DOI: | 10.1292/jvms.15-0186 |
PMID: | 26400674 |
Abstract: | In our previous study, we genetically analyzed bovine viral diarrhea viruses (BVDVs) isolated from 2000 to 2006 in Japan and reported that subgenotype 1b viruses were predominant. In the present study, 766 BVDVs isolated from 2006 to 2014 in Hokkaido, Japan, were genetically analyzed to understand recent epidemics. Phylogenetic analysis based on nucleotide sequences of the 5′-untranslated region of viral genome revealed that 766 isolates were classified as genotype 1 (BVDV-1; 544 isolates) and genotype 2 (BVDV-2; 222). BVDV-1 isolates were further divided into BVDV-1a (93), 1b (371) and 1c (80) subgenotypes, and all BVDV-2 isolates were grouped into BVDV-2a subgenotype (222). Further comparative analysis was performed with BVDV-1a, 1b and 2a viruses isolated from 2001 to 2014. Phylogenetic analysis based on nucleotide sequences of the viral glycoprotein E2 gene, a major target of neutralizing antibodies, revealed that BVDV-1a, 1b and 2a isolates were further classified into several clusters. Cross-neutralization tests showed that BVDV-1b isolates were antigenically different from BVDV-1a isolates, and almost BVDV-1a, 1b and 2a isolates were antigenically similar among each subgenotype and each E2 cluster. Taken together, BVDV-1b viruses are still predominant, and BVDV-2a viruses have increased recently in Hokkaido, Japan. Field isolates of BVDV-1a, 1b and 2a show genetic diversity on the E2 gene with antigenic conservation among each subgenotype during the last 14 years. |
Rights: | https://creativecommons.org/licenses/by-nc-nd/4.0/ |
Type: | article |
URI: | http://hdl.handle.net/2115/76355 |
Appears in Collections: | 獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc) 国際連携研究教育局 : GI-CoRE (Global Institution for Collaborative Research and Education : GI-CoRE) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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