Emerging Infectious Disease ISSN: 1080-6059

West Nile Virus Range Expansion into British Columbia

David Roth

, 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 3

Minimum daily temperature for Osoyoos, British Columbia, Canada, January–September 2009. The solid line represents values observed in 2009; the dashed line represents the best-fit 10-year average. The horizontal dotted line at 14.3°C represents estimated temperature required for Culex tarsalis mosquito development and transmission (3). The vertical dashed line represents the estimated exposure date for human cases and the collection date for the first positive mosquito pools

Figure 3. Minimum daily temperature for Osoyoos, British Columbia, Canada, January–September 2009. The solid line represents values observed in 2009; the dashed line represents the best-fit 10-year average. The horizontal dotted line at 14.3°C represents estimated temperature required for Culex tarsalis mosquito development and transmission (3). The 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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