Survey of Aedes triseriatus (Diptera: Culicidae) for Lacrosse Encephalitis Virus and West Nile Virus in Lorain County, Ohio

Abstract

From June through September 2003, we conducted a survey of female Aedes triseriatus (Say) for infection with La Crosse encephalitis virus (family Bunyaviridae, genus Orthobunyavirus, LACV) and West Nile virus (family Flaviviridae, genus Flavivirus, WNV) at three locations in Lorain County, Ohio. To determine infection rate and seasonal variation of both viruses in the Ae. triseriatus population, Ae. triseriatus were collected weekly by using gravid traps and CO2-baited CDC light traps and tested for virus by using reverse transcriptase polymerase chain reaction. In total, 170 pools comprised of 2,143 females were tested for LACV, of which seven were positive; the maximum likelihood estimate of infection rate combined throughout the season was 3.22/1,000. None of 170 pools comprised of 2,158 females tested for WNV were positive. LACV-positive pools were detected between late July and early September.

Publisher

Oxford University Press

Publication Date

5-1-2006

Publication Title

Journal of Medical Entomology

Department

Biology

Document Type

Article

DOI

https://dx.doi.org/10.1603/0022-2585(2006)43[589:SOATDC]2.0.CO;2

Keywords

West Nile virus, La Crosse encephalitis virus, Surveillance, Arbovirus, Aedes triseriatus

Language

English

Format

text

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