Vector competence of Culex restuans (Diptera: Culicidae) from two regions of Chicago with low and high prevalence of West Nile virus human infections.
J Med Entomol
; 49(3): 678-86, 2012 May.
Article
em En
| MEDLINE
| ID: mdl-22679877
ABSTRACT
Vector competence studies for West Nile virus (WNV) were conducted for two Culex (Culex) restuans Theobald populations Edison Park (EP) and Illinois Medical District (IMD), in Chicago, IL. The aim was to determine if there were differences between mosquito populations that contributed to the observed differences in the prevalence of WNV. Percentages of orally infected, disseminated, and transmitting mosquitoes were estimated using a generalized linear mixed effects model including a random effect for family to account for anticipated within-family correlation. Analysis indicated that percentages of infected, disseminated, and transmitting mosquitoes were not significantly different between EP and IMD. The within-family correlation was 0.46 (95% CI 0.28, 0.67), indicating reasonably strong tendency for WNV titers of bodies, saliva, and legs within families to be similar. Overall, our results show that vector competence of Cx. restuans for WNV is not a contributing factor to the observed differences in WNV human cases between the EP and IMD areas of Chicago.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Febre do Nilo Ocidental
/
Vírus do Nilo Ocidental
/
Culex
/
Insetos Vetores
Tipo de estudo:
Prevalence_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Animals
/
Humans
País/Região como assunto:
America do norte
Idioma:
En
Revista:
J Med Entomol
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Estados Unidos