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Evaluation of bovine viral diarrhoea virus control strategies in dairy herds in Hokkaido, Japan, using stochastic modelling

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Title: Evaluation of bovine viral diarrhoea virus control strategies in dairy herds in Hokkaido, Japan, using stochastic modelling
Authors: Sekiguchi, Satoshi Browse this author
Presi, Patrick Browse this author
Omori, Ryosuke Browse this author →KAKEN DB
Staerk, Katharina Browse this author
Schuppers, Manon Browse this author
Isoda, Norikazu Browse this author
Yoshikawa, Yasuhiro Browse this author
Umemura, Takashi Browse this author →KAKEN DB
Nakayama, Hiroyuki Browse this author
Fujii, Yoshinori Browse this author
Sakoda, Yoshihiro Browse this author →KAKEN DB
Keywords: bovine viral diarrhoea virus
common pasture
control strategies
Issue Date: Feb-2018
Publisher: John Wiley & Sons
Journal Title: Transboundary and emerging diseases
Volume: 65
Issue: 1
Start Page: e135
End Page: e144
Publisher DOI: 10.1111/tbed.12693
Abstract: Bovine viral diarrhoea virus (BVDV) infection in cattle can result in growth retardation, reduced milk production, reproductive disorders and death. Persistently infected animals are the primary source of infection. In Hokkaido, Japan, all cattle entering shared pastures in summer are vaccinated before movement for disease control. Additionally, these cattle may be tested for BVDV and culled if positive. However, the effectiveness of this control strategy aiming to reduce the number of BVDV-infected animals has not been assessed. The aim of this study was to evaluate the effectiveness of various test-and-cull and/or vaccination strategies on BVDV control in dairy farms in two districts of Hokkaido, Nemuro and Hiyama. A stochastic model was developed to compare the different control strategies over a 10-year period. The model was individual-based and simulated disease dynamics both within and between herds. Parameters included in the model were obtained from the literature, the Hokkaido government and the Japanese Ministry of Agriculture, Forestry and Fisheries. Nine different scenarios were compared as follows: no control, test-and-cull strategies based on antigen testing of either calves or only cattle entering common pastures, vaccination of all adult cattle or only cattle entering shared pastures and combinations thereof. The results indicate that current strategies for BVDV control in Hokkaido slightly reduced the number of BVDV-infected animals; however, alternative strategies such as testing all calves and culling any positives or vaccinating all susceptible adult animals dramatically reduced those. To our knowledge, this is the first report regarding the comparison of the effectiveness between the current strategies in Hokkaido and the alternative strategies for BVDV control measures.
Rights: This is the peer reviewed version of the following article: Evaluation of bovine viral diarrhoea virus control strategies in dairy herds in Hokkaido, Japan, using stochastic modelling, which has been published in final form at 10.1111/tbed.12693. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Type: article (author version)
Appears in Collections: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)

Submitter: 迫田 義博

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