Ethological risk factors of West Nile infection on Wild birds in Senegal
Serological studies performed in 2003, as well as viral isolations demonstrated that West Nile fever (WNF) was endemic in Senegal (West Africa). Large populations of potentially infected birds fly each year from West Africa to Europe. The goal of this study was to identify potential reservoirs of West Nile virus among Senegalese birds and ethological features related to WN infection. ln October 2003, wild birds were trapped and sampled in two different locations: the Ornithological Djoud'j National Park, located in the Senegal River Basin and in a village located in the Ferio area (northem Senegal). Sera were analysed using an inhibition immunocapture enzyme-linked immunosorbent assay. Serological data were analysed using a generalized linear Poisson model. Seven ecological features that may influence the exposure of birds to mosquito bites were included as explanatory variables: the trapping location, the migrating status, the feeding site, the resting site, the nesting type, the herd instinct level, and affinity with urban areas. A total of 422 birds representing 49 species were trapped and sampled. The overall prevalence rate was 5.5%. Resident birds building platform or cup nests, as well as birds feeding on soil or having low urban areas affinity were more at risk than others (p=0.01, p=0.02 and p=0.02 respectively). Potential consequences of these results on virus dissemination and WN reservoir birds are discussed.
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Subjects: | L73 - Maladies des animaux, facteur de risque, virus, oiseau, animal sauvage, habitat, http://aims.fao.org/aos/agrovoc/c_32668, http://aims.fao.org/aos/agrovoc/c_8262, http://aims.fao.org/aos/agrovoc/c_935, http://aims.fao.org/aos/agrovoc/c_24103, http://aims.fao.org/aos/agrovoc/c_3456, http://aims.fao.org/aos/agrovoc/c_6970, |
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dig-cirad-fr-5385222024-01-28T15:10:33Z http://agritrop.cirad.fr/538522/ http://agritrop.cirad.fr/538522/ Ethological risk factors of West Nile infection on Wild birds in Senegal. Chevalier Véronique, Reynaud Pierre, Lefrançois Thierry, Lancelot Renaud, Baillon François, Gaidet Nicolas, Balança Gilles, Sylla S.. 2006. In : Proceedings of the 11th Symposium of the International Society of Veterinary Epidemiology and Economics, Cairns, Australia. ISVEE. Cairns : ISVEE, 41-43. (ISVEE Proceedings, 1177-360X, 11) International Symposium on Veterinary Epidemiology and Economics. 11, Cairns, Australie, 6 Août 2006/11 Août 2006.http://www.sciquest.org.nz/node/64038 <http://www.sciquest.org.nz/node/64038> Ethological risk factors of West Nile infection on Wild birds in Senegal Chevalier, Véronique Reynaud, Pierre Lefrançois, Thierry Lancelot, Renaud Baillon, François Gaidet, Nicolas Balança, Gilles Sylla, S. eng 2006 ISVEE Proceedings of the 11th Symposium of the International Society of Veterinary Epidemiology and Economics, Cairns, Australia L73 - Maladies des animaux facteur de risque virus oiseau animal sauvage habitat http://aims.fao.org/aos/agrovoc/c_32668 http://aims.fao.org/aos/agrovoc/c_8262 http://aims.fao.org/aos/agrovoc/c_935 http://aims.fao.org/aos/agrovoc/c_24103 http://aims.fao.org/aos/agrovoc/c_3456 Sénégal http://aims.fao.org/aos/agrovoc/c_6970 Serological studies performed in 2003, as well as viral isolations demonstrated that West Nile fever (WNF) was endemic in Senegal (West Africa). Large populations of potentially infected birds fly each year from West Africa to Europe. The goal of this study was to identify potential reservoirs of West Nile virus among Senegalese birds and ethological features related to WN infection. ln October 2003, wild birds were trapped and sampled in two different locations: the Ornithological Djoud'j National Park, located in the Senegal River Basin and in a village located in the Ferio area (northem Senegal). Sera were analysed using an inhibition immunocapture enzyme-linked immunosorbent assay. Serological data were analysed using a generalized linear Poisson model. Seven ecological features that may influence the exposure of birds to mosquito bites were included as explanatory variables: the trapping location, the migrating status, the feeding site, the resting site, the nesting type, the herd instinct level, and affinity with urban areas. A total of 422 birds representing 49 species were trapped and sampled. The overall prevalence rate was 5.5%. Resident birds building platform or cup nests, as well as birds feeding on soil or having low urban areas affinity were more at risk than others (p=0.01, p=0.02 and p=0.02 respectively). Potential consequences of these results on virus dissemination and WN reservoir birds are discussed. conference_item info:eu-repo/semantics/conferenceObject Conference info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/538522/1/document_538522.pdf application/pdf Cirad license info:eu-repo/semantics/openAccess https://agritrop.cirad.fr/mention_legale.html http://www.sciquest.org.nz/node/64038 http://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=189587 info:eu-repo/semantics/altIdentifier/purl/http://www.sciquest.org.nz/node/64038 |
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L73 - Maladies des animaux facteur de risque virus oiseau animal sauvage habitat http://aims.fao.org/aos/agrovoc/c_32668 http://aims.fao.org/aos/agrovoc/c_8262 http://aims.fao.org/aos/agrovoc/c_935 http://aims.fao.org/aos/agrovoc/c_24103 http://aims.fao.org/aos/agrovoc/c_3456 http://aims.fao.org/aos/agrovoc/c_6970 L73 - Maladies des animaux facteur de risque virus oiseau animal sauvage habitat http://aims.fao.org/aos/agrovoc/c_32668 http://aims.fao.org/aos/agrovoc/c_8262 http://aims.fao.org/aos/agrovoc/c_935 http://aims.fao.org/aos/agrovoc/c_24103 http://aims.fao.org/aos/agrovoc/c_3456 http://aims.fao.org/aos/agrovoc/c_6970 |
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L73 - Maladies des animaux facteur de risque virus oiseau animal sauvage habitat http://aims.fao.org/aos/agrovoc/c_32668 http://aims.fao.org/aos/agrovoc/c_8262 http://aims.fao.org/aos/agrovoc/c_935 http://aims.fao.org/aos/agrovoc/c_24103 http://aims.fao.org/aos/agrovoc/c_3456 http://aims.fao.org/aos/agrovoc/c_6970 L73 - Maladies des animaux facteur de risque virus oiseau animal sauvage habitat http://aims.fao.org/aos/agrovoc/c_32668 http://aims.fao.org/aos/agrovoc/c_8262 http://aims.fao.org/aos/agrovoc/c_935 http://aims.fao.org/aos/agrovoc/c_24103 http://aims.fao.org/aos/agrovoc/c_3456 http://aims.fao.org/aos/agrovoc/c_6970 Chevalier, Véronique Reynaud, Pierre Lefrançois, Thierry Lancelot, Renaud Baillon, François Gaidet, Nicolas Balança, Gilles Sylla, S. Ethological risk factors of West Nile infection on Wild birds in Senegal |
description |
Serological studies performed in 2003, as well as viral isolations demonstrated that West Nile fever (WNF) was endemic in Senegal (West Africa). Large populations of potentially infected birds fly each year from West Africa to Europe. The goal of this study was to identify potential reservoirs of West Nile virus among Senegalese birds and ethological features related to WN infection. ln October 2003, wild birds were trapped and sampled in two different locations: the Ornithological Djoud'j National Park, located in the Senegal River Basin and in a village located in the Ferio area (northem Senegal). Sera were analysed using an inhibition immunocapture enzyme-linked immunosorbent assay. Serological data were analysed using a generalized linear Poisson model. Seven ecological features that may influence the exposure of birds to mosquito bites were included as explanatory variables: the trapping location, the migrating status, the feeding site, the resting site, the nesting type, the herd instinct level, and affinity with urban areas. A total of 422 birds representing 49 species were trapped and sampled. The overall prevalence rate was 5.5%. Resident birds building platform or cup nests, as well as birds feeding on soil or having low urban areas affinity were more at risk than others (p=0.01, p=0.02 and p=0.02 respectively). Potential consequences of these results on virus dissemination and WN reservoir birds are discussed. |
format |
conference_item |
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L73 - Maladies des animaux facteur de risque virus oiseau animal sauvage habitat http://aims.fao.org/aos/agrovoc/c_32668 http://aims.fao.org/aos/agrovoc/c_8262 http://aims.fao.org/aos/agrovoc/c_935 http://aims.fao.org/aos/agrovoc/c_24103 http://aims.fao.org/aos/agrovoc/c_3456 http://aims.fao.org/aos/agrovoc/c_6970 |
author |
Chevalier, Véronique Reynaud, Pierre Lefrançois, Thierry Lancelot, Renaud Baillon, François Gaidet, Nicolas Balança, Gilles Sylla, S. |
author_facet |
Chevalier, Véronique Reynaud, Pierre Lefrançois, Thierry Lancelot, Renaud Baillon, François Gaidet, Nicolas Balança, Gilles Sylla, S. |
author_sort |
Chevalier, Véronique |
title |
Ethological risk factors of West Nile infection on Wild birds in Senegal |
title_short |
Ethological risk factors of West Nile infection on Wild birds in Senegal |
title_full |
Ethological risk factors of West Nile infection on Wild birds in Senegal |
title_fullStr |
Ethological risk factors of West Nile infection on Wild birds in Senegal |
title_full_unstemmed |
Ethological risk factors of West Nile infection on Wild birds in Senegal |
title_sort |
ethological risk factors of west nile infection on wild birds in senegal |
publisher |
ISVEE |
url |
http://agritrop.cirad.fr/538522/ http://agritrop.cirad.fr/538522/1/document_538522.pdf |
work_keys_str_mv |
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_version_ |
1792496652008816640 |