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 508515
Title Comparative Risk Analysis of Two Culicoides-Borne Diseases in Horses : Equine Encephalosis More Likely to Enter France than African Horse Sickness
Author(s) Faverjon, C.; Leblond, A.; Lecollinet, S.; Bødker, R.; Koeijer, A.A. de; Fischer, E.A.J.
Source Transboundary and Emerging Diseases 64 (2017)6. - ISSN 1865-1674 - p. 1825 - 1836.
Department(s) CVI Bacteriology and Epidemiology
CVI Diagnostics and Crisis
Publication type Refereed Article in a scientific journal
Publication year 2017
Keyword(s) Culicoides - African horse sickness - Emerging diseases - Equine encephalosis - Horses - Import risk - Quantitative risk - Risk assessment - Risk of entry - Risk of release

African horse sickness (AHS) and equine encephalosis (EE) are Culicoides-borne viral diseases that could have the potential to spread across Europe if introduced, thus being potential threats for the European equine industry. Both share similar epidemiology, transmission patterns and geographical distribution. Using stochastic spatiotemporal models of virus entry, we assessed and compared the probabilities of both viruses entering France via two pathways: importation of live-infected animals or importation of infected vectors. Analyses were performed for three consecutive years (2010-2012). Seasonal and regional differences in virus entry probabilities were the same for both diseases. However, the probability of EE entry was much higher than the probability of AHS entry. Interestingly, the most likely entry route differed between AHS and EE: AHS has a higher probability to enter through an infected vector and EE has a higher probability to enter through an infectious host. Consequently, different effective protective measures were identified by 'what-if' scenarios for the two diseases. The implementation of vector protection on all animals (equine and bovine) coming from low-risk regions before their importation was the most effective in reducing the probability of AHS entry. On the other hand, the most significant reduction in the probability of EE entry was obtained by the implementation of quarantine before import for horses coming from both EU and non-EU countries. The developed models can be useful to implement risk-based surveillance.

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