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Risk assessment as a tool for improving external biosecurity at farm level

Sternberg Lewerin, Susanna and Österberg, Julia and Alenius, Stefan and Elvander, Marianne and Fellström, Claes and Tråven, Madeleine and Wallgren, Per and Persson Waller, Karin and Jacobson, Magdalena (2015). Risk assessment as a tool for improving external biosecurity at farm level. BMC Veterinary Research. 11:171, 1-10
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Official URL: http://dx.doi.org/10.1186/s12917-015-0477-7

Abstract

Background: Biosecurity routines at herd level may reduce the probability of introduction of disease into the herd, but some measures may be regarded as expensive and cumbersome for the farmers. Custom-made measures based on individual farm characteristics may aid in improving the actual application of on-farm biosecurity. The aim of the study was to provide a tool for calculating the effects of different biosecurity measures and strategies on the individual farm level.A simple model was developed to assess the risk of disease introduction and the need for biosecurity measures in individual farms. To illustrate the general applicability of the tool, it was applied to theoretical examples of Swedish cattle and pig farms and diseases endemic in those animal species in the EU, in two scenarios with different between-farm contact patterns.Results: The model illustrated that the most important factors affecting the risk, and the effect of biosecurity measures such as quarantine routines and protective clothing, were the frequency of between- farm contacts and prevalence of the disease. The risk of introduction as well as the effect of biosecurity measures differed between farm types and disease transmission routes. Adapting contact patterns to mitigate a specific disease risk was as important as biosecurity measures for some farm types, but the largest effect was seen when combining biosecurity measures with more planned contact patterns.Conclusions: The risk assessment model proved useful for illustrating the risk of introduction of endemic diseases and the mitigating effect of different biosecurity measures on farm level. Model outputs could be used to justify prioritisation of measures or adapting contact patterns. The theoretic exercise of adjusting model inputs and comparing outputs may help veterinary advisors to understand farm-specific risks and motivate farmers to improve biosecurity in their individual farm, as it can be tailored to each farmer's needs and preferences.

Authors/Creators:Sternberg Lewerin, Susanna and Österberg, Julia and Alenius, Stefan and Elvander, Marianne and Fellström, Claes and Tråven, Madeleine and Wallgren, Per and Persson Waller, Karin and Jacobson, Magdalena
Title:Risk assessment as a tool for improving external biosecurity at farm level
Series/Journal:BMC Veterinary Research (1746-6148)
Year of publishing :2015
Volume:11
Number:171
Page range:1-10
Number of Pages:10
Publisher:BioMed Central
ISSN:1746-6148
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Agris subject categories.:L Animal production > L70 Veterinary science and hygiene - General aspects
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 403 Veterinary Science > Pathobiology
Agrovoc terms:risk assessment, farms, livestock, animal health
Keywords:On-farm biosecurity, Risk assessment, Infectious disease, Livestock, Disease introduction, Model
URN:NBN:urn:nbn:se:slu:epsilon-e-3035
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-3035
Additional ID:
Type of IDID
Web of Science (WoS)000358472500002
DOI10.1186/s12917-015-0477-7
ID Code:12753
Faculty:VH - Faculty of Veterinary Medicine and Animal Science
Department:(VH) > Dept. of Clinical Sciences
(VH) > Dept. of Biomedical Sciences and Veterinary Public Health
Deposited By: SLUpub Connector
Deposited On:30 Oct 2015 06:51
Metadata Last Modified:01 Nov 2015 17:22

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