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Volume 16, Number 8—August 2010

Research

West Nile Virus Range Expansion into British Columbia

David RothComments to Author , Bonnie Henry, Sunny Mak, Mieke Fraser, Marsha Taylor, Min Li, Ken Cooper, Allen Furnell, Quantine Wong, Muhammad Morshed, and Members of the British Columbia West Nile Virus Surveillance Team1
Author affiliations: British Columbia Centre for Disease Control, Vancouver, British Columbia, Canada (D. Roth, B. Henry, S. Mak, M. Fraser, M. Taylor, M. Li, K. Cooper, A. Furnell, Q. Wong, M. Morshed; University of British Columbia, Vancouver (D. Roth, B. Henry, M. Morshed)

Main Article

Figure 2

Nightly average catch for Culex pipiens (A) and Cx. tarsalis (B) mosquitoes across all trapping locations in British Columbia, Canada, during 2005–2009. Provincial vector surveillance data are aggregated by week beginning January 1, and the dates provided represent the first day of a given week. Vertical dashed line represents the estimated exposure date for human cases and the collection date for the first positive mosquito pools.

Figure 2. Nightly average catch for Culex pipiens (A) and Cx. tarsalis (B) mosquitoes across all trapping locations in British Columbia, Canada, during 2005–2009. Provincial vector surveillance data are aggregated by week beginning January 1, and the dates provided represent the first day of a given week. Vertical dashed line represents the estimated exposure date for human cases and the collection date for the first positive mosquito pools.

Main Article

1Members of the British Columbia WNV Surveillance Team: Lucy Beck, Victoria Bowes, Elizabeth Brodkin, Steve Chong, Ken Christian, Dalton Cross, Murray Fyfe, Roland Guasparini, Paul Hasselback, Randy Heilbron, Mira Leslie, James Lu, Craig Nowakowski, Robert Parker, Tim Shum, Kevin Touchet, and Eric Young.

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