West Nile virus in Guadeloupe: introduction, spread, and decrease in circulation level: 2002-2005.
Ann N Y Acad Sci
; 1081: 206-15, 2006 Oct.
Article
em En
| MEDLINE
| ID: mdl-17135513
ABSTRACT
In July 2002, a surveillance system was implemented on Guadeloupe to detect for the potential introduction and monitor the spread of West Nile virus (WNV). From 2002 to 2004, equines and chickens were serologically assayed for antibodies to WNV by IgG and IgM enzyme-linked immunosorbent assay (ELISA), epitope-blocking ELISA, and plaque reduction neutralization tests. After introduction, probably through migratory birds at the end of 2001, many seroconversions occurred between July and October 2002 resulting in a high seroprevalence (19.3%) in equines in 2003. WNV circulation levels decreased dramatically in 2003 and 2004 as assessed by the absence of seroconversion in equine and the very low prevalence in chickens. This decrease coincided with a 7-month drought that presumably caused a decrease in vector populations. In 2005, a sentinel survey was implemented in equines and chickens placed in areas at high risk and the very low rate of seroconversion (1 equine out of 106, no chicken) demonstrated that WNV circulation is now occurring at a very low level.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Doenças das Aves Domésticas
/
Febre do Nilo Ocidental
/
Vírus do Nilo Ocidental
/
Galinhas
/
Doenças dos Cavalos
/
Anticorpos Antivirais
Tipo de estudo:
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
Limite:
Animals
País/Região como assunto:
Caribe
/
Guadalupe
Idioma:
En
Revista:
Ann N Y Acad Sci
Ano de publicação:
2006
Tipo de documento:
Article
País de afiliação:
Guadalupe