Efficacy of aerial spraying of mosquito adulticide in reducing incidence of West Nile Virus, California, 2005.
Emerg Infect Dis
; 14(5): 747-54, 2008 May.
Article
em En
| MEDLINE
| ID: mdl-18439356
ABSTRACT
Epidemic transmission of West Nile virus (WNV) in Sacramento County, California, in 2005 prompted aerial application of pyrethrin, a mosquito adulticide, over a large urban area. Statistical analyses of geographic information system datasets indicated that adulticiding reduced the number of human WNV cases within 2 treated areas compared with the untreated area of the county. When we adjusted for maximum incubation period of the virus from infection to onset of symptoms, no new cases were reported in either of the treated areas after adulticiding; 18 new cases were reported in the untreated area of Sacramento County during this time. Results indicated that the odds of infection after spraying were approximately 6x higher in the untreated area than in treated areas, and that the treatments successfully disrupted the WNV transmission cycle. Our results provide direct evidence that aerial mosquito adulticiding is effective in reducing human illness and potential death from WNV infection.
Texto completo:
1
Coleções:
01-internacional
Contexto em Saúde:
1_ASSA2030
/
2_ODS3
/
4_TD
Base de dados:
MEDLINE
Assunto principal:
Piretrinas
/
Febre do Nilo Ocidental
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Vírus do Nilo Ocidental
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Controle de Mosquitos
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Culex
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Inseticidas
Tipo de estudo:
Evaluation_studies
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Incidence_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Animals
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Humans
País/Região como assunto:
America do norte
Idioma:
En
Revista:
Emerg Infect Dis
Ano de publicação:
2008
Tipo de documento:
Article