Evidence of vertical transmission of West Nile virus in field‐collected mosquitoes |
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| Authors: | Isik Unlu Andrew J. Mackay Alma Roy Matt M. Yates Lane D. Foil |
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| Affiliation: | 1. Mercer County Mosquito Control, 300 Scotch Road, West Trenton, NJ 08628, U.S.A.;2. Dengue Branch, Centers for Disease Control and Prevention, 1324 Calle Ca?ada, San Juan, Puerto Rico 00920, U.S.A.;3. Louisiana Animal Disease and Diagnostic Laboratory, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, U.S.A.;4. East Baton Rouge Parish Mosquito Abatement and Rodent Control District, 2829 Lt. Gen. Ben Davis, Jr. Ave, Baton Rouge, LA 70807, U.S.A.;5. Department of Entomology, Louisiana State University Agricultural Center, 402 Life Sciences Bldg., Baton Rouge, LA 70803, U.S.A. |
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| Abstract: | Male and nulliparous female mosquitoes were surveyed for evidence of vertical WNV infection in East Baton Rouge Parish, Louisiana. Adult male mosquitoes collected by trapping and aspiration, and adult male and nulliparous female mosquitoes reared from field‐collected larvae were tested. Adult male Culex spp., female Aedes albopictus (Skuse), and female Culex quinquifasciatus Say mosquitoes that were collected as larvae were test‐positive for WNV RNA. Infectious WNV was detected using virus isolation in field‐collected male Aedes triseriatus Say and Culex salinarius Coquillett; these data represent the first field evidence of vertical transmission of WNV in Ae. triseriatus and Cx. salinarius. |
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| Keywords: | West Nile virus mosquitoes vertical transmission |
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