http://orcid.org/0000-0002-8923-1168
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Abstract
The major impacts of bovine viral diarrhoea (BVD) on cattle health and production have prompted many countries to embark on national elimination programmes. These programmes typically involve identifying and removing persistently infected (PI) cattle in infected herds and implementing biosecurity measures, such as pre- or post-movement testing. In order to design a systematic national control programme to eliminate BVD in New Zealand, which achieves the greatest benefits to the industries at the lowest cost to individual farmers, an accurate understanding is necessary of the epidemiology, economics and social motivation for BVD control in New Zealand. In this article we briefly review the pathogenesis of BVD, transmission and diagnosis of BVD virus infection, and effectiveness of vaccination. We summarise the current state of knowledge of the prevalence, risk factors for transmission, and financial impacts of BVD in New Zealand. We describe control programmes in Europe and then discuss the challenges that must be addressed to design a cost-effective national control programme to eliminate BVD in New Zealand.
Acknowledgements
J-H Han is supported by KNZACS, a joint scholarship programme between the Republic of Korea and New Zealand, and by a Massey University Doctoral Scholarship. The BVD Free New Zealand project is supported through grants from the Sustainable Farming Fund, AGMARDT, MSD Animal Health, Zoetis, and Massey University.