West-Nile virus surveillance in Guadeloupe, French West Indies
West Nile virus (WNV) emerged in the New World in New York, 1999. In the USA, the virus provokes significant morbidity and mortality in birds, horses and humans. The disease further spread southward into the Caribbean, Central and South America. WNV caused no or very limited health impact on animal and human populations in the Caribbean. In order to detect the potential introduction of WNV in Guadeloupe, a surveillance system was implemented in 2002. Equine serological surveys evidenced viral circulation when abundant seroconversions were detected during the rainy season in 2002. Since then, annual serosurveys were implemented in seronegative equines. Important equine seroconversion rates were detected in two additional periods, the first comprised between September 2007 and August 2008, and the second between January 2011 and March 2013. Short after, sentinel chicken based surveillance was coupled to equine surveillance in areas with previous horse seroconversions. Equine and chicken seroconversions were detected between April 2013 and December 2014. Then, an entomological surveillance network was deployed early 2015 in two areas with recent horse and chicken seroconversions. At each area, the dynamics of mosquito populations was studied around sentinel chickens and nearby natural landscapes to determine the presence of potential bridge and enzootic vectors. Seasonality of mosquitoes evidenced that potential vectors of WNV are abundant during the rainy season at all landscapes. The high density of potential vectors during the rainy season does overlap with equine and poultry seroconversion periods suggesting an increased risk for transmission. (Texte integral)
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dig-cirad-fr-5857762018-10-12T23:23:19Z http://agritrop.cirad.fr/585776/ http://agritrop.cirad.fr/585776/ West-Nile virus surveillance in Guadeloupe, French West Indies. Pages N., Vachiéry Nathalie, Lefrançois Thierry, Giraud-Girard Ken, Albina Emmanuel, Pradel Jennifer. 2017. In : Sove 2017 New technology conquering old vectors?. Miranda Chueca (ed.), Miguel Ángel (ed.), Alten, Bulent (ed.). Palma de Mallorque : SOVE, Résumé, 221. ISBN 978-84-697-6086-4 International SOVE congress: New technology conquering old vectors?. 7, Palma de Mallorque, Espagne, 1 Octobre 2017/7 Octobre 2017.http://www.uibcongres.org/sove2017/paginas/pagina_432_22.en.html <http://www.uibcongres.org/sove2017/paginas/pagina_432_22.en.html> Researchers West-Nile virus surveillance in Guadeloupe, French West Indies Pages, N. Vachiéry, Nathalie Lefrançois, Thierry Giraud-Girard, Ken Albina, Emmanuel Pradel, Jennifer eng 2017 SOVE Sove 2017 New technology conquering old vectors? L73 - Maladies des animaux 000 - Autres thèmes West Nile virus (WNV) emerged in the New World in New York, 1999. In the USA, the virus provokes significant morbidity and mortality in birds, horses and humans. The disease further spread southward into the Caribbean, Central and South America. WNV caused no or very limited health impact on animal and human populations in the Caribbean. In order to detect the potential introduction of WNV in Guadeloupe, a surveillance system was implemented in 2002. Equine serological surveys evidenced viral circulation when abundant seroconversions were detected during the rainy season in 2002. Since then, annual serosurveys were implemented in seronegative equines. Important equine seroconversion rates were detected in two additional periods, the first comprised between September 2007 and August 2008, and the second between January 2011 and March 2013. Short after, sentinel chicken based surveillance was coupled to equine surveillance in areas with previous horse seroconversions. Equine and chicken seroconversions were detected between April 2013 and December 2014. Then, an entomological surveillance network was deployed early 2015 in two areas with recent horse and chicken seroconversions. At each area, the dynamics of mosquito populations was studied around sentinel chickens and nearby natural landscapes to determine the presence of potential bridge and enzootic vectors. Seasonality of mosquitoes evidenced that potential vectors of WNV are abundant during the rainy season at all landscapes. The high density of potential vectors during the rainy season does overlap with equine and poultry seroconversion periods suggesting an increased risk for transmission. (Texte integral) conference_item info:eu-repo/semantics/conferenceObject Conference info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/585776/1/ID585776.pdf text Cirad license info:eu-repo/semantics/openAccess https://agritrop.cirad.fr/mention_legale.html http://www.uibcongres.org/sove2017/paginas/pagina_432_22.en.html info:eu-repo/semantics/altIdentifier/purl/http://www.uibcongres.org/sove2017/paginas/pagina_432_22.en.html |
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L73 - Maladies des animaux 000 - Autres thèmes L73 - Maladies des animaux 000 - Autres thèmes Pages, N. Vachiéry, Nathalie Lefrançois, Thierry Giraud-Girard, Ken Albina, Emmanuel Pradel, Jennifer West-Nile virus surveillance in Guadeloupe, French West Indies |
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West Nile virus (WNV) emerged in the New World in New York, 1999. In the USA, the virus provokes significant morbidity and mortality in birds, horses and humans. The disease further spread southward into the Caribbean, Central and South America. WNV caused no or very limited health impact on animal and human populations in the Caribbean. In order to detect the potential introduction of WNV in Guadeloupe, a surveillance system was implemented in 2002. Equine serological surveys evidenced viral circulation when abundant seroconversions were detected during the rainy season in 2002. Since then, annual serosurveys were implemented in seronegative equines. Important equine seroconversion rates were detected in two additional periods, the first comprised between September 2007 and August 2008, and the second between January 2011 and March 2013. Short after, sentinel chicken based surveillance was coupled to equine surveillance in areas with previous horse seroconversions. Equine and chicken seroconversions were detected between April 2013 and December 2014. Then, an entomological surveillance network was deployed early 2015 in two areas with recent horse and chicken seroconversions. At each area, the dynamics of mosquito populations was studied around sentinel chickens and nearby natural landscapes to determine the presence of potential bridge and enzootic vectors. Seasonality of mosquitoes evidenced that potential vectors of WNV are abundant during the rainy season at all landscapes. The high density of potential vectors during the rainy season does overlap with equine and poultry seroconversion periods suggesting an increased risk for transmission. (Texte integral) |
format |
conference_item |
topic_facet |
L73 - Maladies des animaux 000 - Autres thèmes |
author |
Pages, N. Vachiéry, Nathalie Lefrançois, Thierry Giraud-Girard, Ken Albina, Emmanuel Pradel, Jennifer |
author_facet |
Pages, N. Vachiéry, Nathalie Lefrançois, Thierry Giraud-Girard, Ken Albina, Emmanuel Pradel, Jennifer |
author_sort |
Pages, N. |
title |
West-Nile virus surveillance in Guadeloupe, French West Indies |
title_short |
West-Nile virus surveillance in Guadeloupe, French West Indies |
title_full |
West-Nile virus surveillance in Guadeloupe, French West Indies |
title_fullStr |
West-Nile virus surveillance in Guadeloupe, French West Indies |
title_full_unstemmed |
West-Nile virus surveillance in Guadeloupe, French West Indies |
title_sort |
west-nile virus surveillance in guadeloupe, french west indies |
publisher |
SOVE |
url |
http://agritrop.cirad.fr/585776/ http://agritrop.cirad.fr/585776/1/ID585776.pdf |
work_keys_str_mv |
AT pagesn westnilevirussurveillanceinguadeloupefrenchwestindies AT vachierynathalie westnilevirussurveillanceinguadeloupefrenchwestindies AT lefrancoisthierry westnilevirussurveillanceinguadeloupefrenchwestindies AT giraudgirardken westnilevirussurveillanceinguadeloupefrenchwestindies AT albinaemmanuel westnilevirussurveillanceinguadeloupefrenchwestindies AT pradeljennifer westnilevirussurveillanceinguadeloupefrenchwestindies |
_version_ |
1758025511987052544 |