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  • Title: Vector competence of Culex tarsalis from Orange County, California, for West Nile virus.
    Author: Turell MJ, O'Guinn ML, Dohm DJ, Webb JP, Sardelis MR.
    Journal: Vector Borne Zoonotic Dis; 2002; 2(3):193-6. PubMed ID: 12737548.
    Abstract:
    To evaluate the vector competence of Culex tarsalis Coquillett for West Nile virus (WN), females reared from larvae collected in Huntington Beach, Orange County, CA, were fed on 2-3-day-old chickens previously inoculated with a New York strain (Crow 397-99) of WN. The Cx. tarsalis mosquitoes were efficient laboratory vectors of WN, with estimated transmission rates of 81% and 91% for mosquitoes that ingested 10(6.5) or 10(7.3) plaque-forming units of WN/mL of blood, respectively. Based on efficiency of viral transmission and the role of this species in the transmission of the closely related St. Louis encephalitis virus, Cx. tarsalis should be considered a potentially important vector of WN in the western United States.
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