Empirical analysis suggests continuous and homogeneous circulation of Newcastle disease virus in a wide range of wild bird species in Africa
2015
Cappelle, J. | Caron, A. | Servan de Almeida, Renata | de Almeida, R. S. | Gil, P. | Pedrono, M. | Mundava, J. | Fofana, B. | Balança, G. | Dakouo, M. | El Mamy, A. B. O. | Abolnik, C. | Maminiaina, O. F. | Cumming, G. S. | de Visscher, M. N. | Albina, Emmanuel | Chevalier, V. | Gaidet, N. | Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad) | Institut Pasteur du Cambodge ; Pasteur Network (Réseau International des Instituts Pasteur) | Mammal Research Institute ; Department of Zoology and Entomology [Pretoria] ; University of Pretoria [South Africa]-University of Pretoria [South Africa] | Contrôle des maladies animales exotiques et émergentes (UMR CMAEE) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA) | National University of Science and Technology [Bulawayo] | Direction Nationale des Eaux et Forêts ; Partenaires INRAE | Laboratoire Central Vétérinaire [Bamako, Mali] | Centre National d’Elevage et de Recherches Vétérinaires (CNERV) | University of Pretoria [South Africa] | FOFIFA-DRZV | Percy FitzPatrick Institute of African Ornithology ; University of Cape Town | GRIPAVI project - French Ministry of Foreign Affairs ; USAID-funded GAINS (Global Avian Influenza network for Surveillance) sub-contract from the Wildlife Conservation Society
International audience
اظهر المزيد [+] اقل [-]إنجليزي. Newcastle disease (ND) is one of the most important poultry diseases worldwide and can lead to annual losses of up to 80% of backyard chickens in Africa. All bird species are considered susceptible to ND virus (NDV) infection but little is known about the role that wild birds play in the epidemiology of the virus. We present a long-term monitoring of 9000 wild birds in four African countries. Overall, 3.06% of the birds were PCR-positive for NDV infection, with prevalence ranging from 0% to 10% depending on the season, the site and the species considered. Our study shows that ND is circulating continuously and homogeneously in a large range of wild bird species. Several genotypes of NDV circulate concurrently in different species and are phylogenetically closely related to strains circulating in local domestic poultry, suggesting that wild birds may play several roles in the epidemiology of different NDV strains in Africa. We recommend that any strategic plan aiming at controlling ND in Africa should take into account the potential role of the local wild bird community in the transmission of the disease.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل Institut national de la recherche agronomique