Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 501880
Title Controlling highly pathogenic avian influenza outbreaks : An epidemiological and economic model analysis
Author(s) Backer, J.A.; Roermund, H.J.W. van; Fischer, E.A.J.; Asseldonk, M.A.P.M. van; Bergevoet, R.H.M.
Source Preventive Veterinary Medicine 121 (2015)1-2. - ISSN 0167-5877 - p. 142 - 150.
DOI http://dx.doi.org/10.1016/j.prevetmed.2015.06.006
Department(s) Central Veterinary Institute
CVI Diagnostics and Crisis
LEI Innovation, Risk and Information Management
WASS
Development Economics Group
Publication type Refereed Article in a scientific journal
Publication year 2015
Keyword(s) Control strategy - Economic assessment - Epidemiological model - Highly pathogenic avian influenza - HPAI - Pre-emptive culling - Vaccination
Abstract

Outbreaks of highly pathogenic avian influenza (HPAI) can cause large losses for the poultry sector and for animal disease controlling authorities, as well as risks for animal and human welfare. In the current simulation approach epidemiological and economic models are combined to compare different strategies to control highly pathogenic avian influenza in Dutch poultry flocks. Evaluated control strategies are the minimum EU strategy (i.e., culling of infected flocks, transport regulations, tracing and screening of contact flocks, establishment of protection and surveillance zones), and additional control strategies comprising pre-emptive culling of all susceptible poultry flocks in an area around infected flocks (1. km, 3. km and 10. km) and emergency vaccination of all flocks except broilers around infected flocks (3. km).Simulation results indicate that the EU strategy is not sufficient to eradicate an epidemic in high density poultry areas. From an epidemiological point of view, this strategy is the least effective, while pre-emptive culling in 10. km radius is the most effective of the studied strategies. But these two strategies incur the highest costs due to long duration (EU strategy) and large-scale culling (pre-emptive culling in 10. km radius). Other analysed pre-emptive culling strategies (i.e., in 1. km and 3. km radius) are more effective than the analysed emergency vaccination strategy (in 3. km radius) in terms of duration and size of the epidemics, despite the assumed optimistic vaccination capacity of 20 farms per day. However, the total costs of these strategies differ only marginally. Extending the capacity for culling substantially reduces the duration, size and costs of the epidemic.This study demonstrates the strength of combining epidemiological and economic model analysis to gain insight in a range of consequences and thus to serve as a decision support tool in the control of HPAI epidemics.

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