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Assessment of the risk of a bluetongue outbreak in Europe caused by Culicoides midges introduced through intracontinental transport and trade networks.
- Source :
-
Medical & Veterinary Entomology . Mar2013, Vol. 27 Issue 1, p19-28. 10p. 2 Diagrams, 4 Charts, 2 Graphs. - Publication Year :
- 2013
-
Abstract
- The importation of infected hosts and the arrival of windborne infected Culicoides (Diptera: Ceratopogonidae) were considered unlikely mechanisms for bluetongue virus (BTV) incursion into a BTV-free area during the recent BTV serotype 8 (BTV-8) epidemic in northern Europe. Therefore, alternative mechanisms need to be considered. Air, sea and land transport networks continue to expand, and an important consequence of this is vector-borne pathogen importation. One important aspect of bluetongue (BT) epidemiology not yet addressed is the potential movement of infected Culicoides via transport and trade networks. Therefore, a risk assessment model was constructed to assess the probability of a BTV outbreak as a consequence of the introduction of Culicoides via these networks. The model was applied to calculate the risk for a BTV-8 epidemic in Spain in 2007 caused by the introduction of Culicoides from affected northern European countries. The mean weighted annual risk for an outbreak caused by transportation of a single vector from an affected northern European country varied from 1.8 × 10−7 to 3.0 × 10−13, with the highest risks associated with Culicoides imported from Belgium, the Netherlands, Germany and France. For this mechanism to pose a significant risk to BTV-free countries, a large number of vectors would have to be transported. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0269283X
- Volume :
- 27
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Medical & Veterinary Entomology
- Publication Type :
- Academic Journal
- Accession number :
- 85455471
- Full Text :
- https://doi.org/10.1111/j.1365-2915.2012.01016.x