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Epidemiology and control of african swine fever in Senegal : from farm surveys to national network

Etter E., Ndiaye R.K., Calderon A., Seck I., Laleye F.X., Duteurtre G., Mankor A., Akakpo J., Lo M., Jori F., Vial L., Roger F.. 2007. In : Camus Emmanuel (ed.), Cardinale Eric (ed.), Dalibard Christophe (ed.), Martinez Dominique (ed.), Renard Jean-François (ed.), Roger François (ed.). Does control of animal infectious risks offer a new international perspective ? : proceedings of the 12th International Conference of the Association of Institutions of Tropical Veterinary Medicine, Montpellier, France, 20-22 August 2007. Montpellier : CIRAD, p. 85-89. International Conference of the Association of Institutions of Tropical Veterinary Medicine. 12, 2007-08-20/2007-08-22, Montpellier (France).

African Swine Fever (ASF) is considered to be enzootic since 1957 in Senegal where the population of pigs is concentrated in the catholic areas of the country (South-West). This risk assessment of the African Swine Fever (ASF) in Senegal includes economical aspects of the pig production chain. Different surveys allowed obtaining a good overview of the epidemiology and the main risk factors of introduction of ASF in the farms. Animal and money flows were estimated to identify the risk pathways at a national level. The global prevalence of the disease given by our transversal survey was 17% [14.4%-19.6%], but significant differences were recorded between regions. The Ziguinchor region showed a higher prevalence of 24.8% [20%-29.6%]. The survey in the farms showed that the main risk factors are the neighbouring ASF cases, the entrance of foreign breeders in the farm and the free-ranging of pigs. These result and the study of animal flows allowed the preparation of a communication policy in order to inform farmers and associations of breeders about the hazards of the disease and the main precautions to consider related to hygiene in farming practices. In terms of risk management, these results allowed to propose the optimization of the national surveillance network concerning ASF. This improvement will adapt the passive surveillance system with better involvement of breeders in the control of commonly devastating disease.

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