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West Nile Virus – Ontario 2002

West Nile Virus – Ontario 2002. Ian K. Barker Canadian Cooperative Wildlife Health Centre. Ontario Veterinary College University of Guelph. West Nile Virus Transmission Cycle. Mosquito vectors Culex species mainly. VIRUS. Spill-over via bridging vectors. VIRUS. VIRUS. Amplification.

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West Nile Virus – Ontario 2002

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  1. West Nile Virus – Ontario 2002 Ian K. Barker Canadian Cooperative Wildlife Health Centre Ontario Veterinary College University of Guelph

  2. West Nile Virus Transmission Cycle Mosquito vectors Culex species mainly VIRUS Spill-over via bridging vectors VIRUS VIRUS Amplification Avianreservoirs Dead - endhosts

  3. WNV Surveillance Method v.s. Virus Amplification in Nature

  4. Objective of Wild Bird Surveillance

  5. CCWHC Dead Bird Processing • carcasses, sightings • accession, dissection, specimen collection & shipment • database: tracking, reporting, mapping, accounting

  6. WNV Dissemination by Migratory Birds 2000 - 2001? To Central and South America

  7. WNV Explosion - 2002 Nov 1, 2002 Aug 1, 2002 Aug 23, 2002 Sept. 7, 2002

  8. Index case – WNV in a dead crow – May 19, 2002

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