Susceptibility of Peruvian mosquitoes to eastern equine encephalitis virus.
J Med Entomol
; 45(4): 720-5, 2008 Jul.
Article
em En
| MEDLINE
| ID: mdl-18714873
ABSTRACT
Mosquitoes were collected in the Amazon Basin, near Iquitos, Peru, and used in experimental studies to evaluate their susceptibility to strains of eastern equine encephalitis virus (EEEV) that were isolated from mosquitoes captured within 20 km of Iquitos. When fed on hamsters or chickens with a viremia of 4105 plaque-forming units (PFU) of EEEV/ml, Culex pedroi Sirivanakarn and Belkin, Aedesfulvus (Wiedemann), Psorophora albigenu (Peryassu), and Psorophoraferox (Von Humboldt) were susceptible to infection, whereas none of the Aedes serratus (Theobald), Culex vomerifer Komp, Culex gnomatos Sallum, Huchings, and Ferreira, Culex portesi Senevet and Abonnenc, or Culex coronator Dyar and Knab became infected, even though they fed on the same viremic blood sources. When these mosquito species fed on animals with viremias of approximately 10(8) PFU/ml, Cx. pedroi, Ae.II (Brazil-Peru) and a lineage III (Argentina-Panama) isolate of EEEV. This study, combined with the repeated isolation of strains of EEEV from Cx. pedroi captured in the Amazon Basin region of Peru, suggests that Cx. pedroi may be the primary enzootic vector of EEEV in this region.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Vírus da Encefalite Equina do Leste
/
Culicidae
Limite:
Animals
País/Região como assunto:
America do sul
/
Peru
Idioma:
En
Revista:
J Med Entomol
Ano de publicação:
2008
Tipo de documento:
Article
País de afiliação:
Estados Unidos