@article{oai:rakuno.repo.nii.ac.jp:00006766,
 author = {渡部, 栞 and HAGIWARA, Katsuro and 萩原, 克郎 and 安藤, 達哉},
 issue = {9},
 journal = {日本獣医師会雑誌},
 month = {Sep},
 note = {Article, 牛のボルナ病はボルナ病ウイルス1（BoDV-1）による感染症で運動器障害を示すことが知られるが，ほとんどの個体は無症状である．BoDV-1は垂直伝播の可能性が報告されており，今回ボルナ病の発症が認められた1乳用牛群における伝播状況の調査及び垂直伝播の相対リスク（RR）の疫学的検討を行った．その結果，牛群のBoDV-1抗体保有率は全体の35.5％であった．牛群全体としての垂直伝播RRにおける有意性は認められなかったが，1母系統においてRR 3.03（90％CI 1.08～8.49）と，その有意性が認められた．BoDV-1抗体の有無による繁殖成績を比較したところBoDV-1との関連は認められなかった．本牛群のBoDV-1抗体保有率は過去の報告と比較して高く，特定の系統におけるBoDV-1の垂直伝播RRが認められたことから母子伝播の積極的な予防の必要性が示された．, Bovine Borna disease causes mobility abnormalities due to Borna disease virus 1 (BoDV‐1) infection. Subclinical infections among livestock are well known. Both vertical as well as horizontal transmission has been reported. The purpose of this report was to clarify the relative risk (RR) of vertical viral transmission in dairy cattle herds on a farm that previously reported Borna disease. The antibody prevalence within the herd was 35.5% using the BoDV‐1 antibody test. The RR of vertical transmission in this group was insignificant; however, within one family line, there was a significant RR of 3.03 (90% CI 1.08‐8.49). There was no association between reproductive performance and the presence or absence of BoDV‐1 infection in the herd. BoDV‐1 antibody prevalence within this herd was elevated compared to previous reports. The RR of vertical transmission of BoDV‐1 within certain strains indicates the need for active prevention of vertical transmission.},
 pages = {501--505},
 title = {ボルナ病発症乳牛群におけるボルナ病ウイルス抗体保有率と垂直伝播相対リスクの血清疫学的分析},
 volume = {73},
 year = {2020}
}