West Nile Virus
The provincial Ministry of Health has provided funding annually for a West Nile Virus (WNv) prevention program. Under this program, standing water (marshes, ditches, etc.) have been mapped and are visited throughout the summer. Additionally, light traps were set up at three of the locations to trap adult mosquitoes for identification.
In areas found to have mosquito larvae present, the surface of the water is treated with a bacteria Bacillus thuringiensis var – Bti, which kills the larvae without affecting any other insects, birds, amphibians, fish or mammals. The collection points, or catch basins, for the roads drainage system are also treated with the bacteria Bacillus sphaericus. Ten-pound pouches are placed in each catch basin, providing a slow release of bacteria over the course of the mosquito season and killing the larvae without affecting other wildlife.
Last year, Interior Health reported no mosquito WNv detections nor any human cases in the summer of 2011. Based on current evidence, the possibility of a more substantial human outbreak seems unlikely. Therefore preemptive mosquito larviciding is no longer warranted as a precautionary risk-reduction measure, and as such, there will not be any funds distributed by the Ministry of Health for the 2012 spring/summer WNv program.
However, Provincial and Health officials will be monitoring environmental conditions, conducting mosquito testing, and human and animal WNv case surveillance. Should the situation change and the risk seem elevated, a larviciding program may be implemented.
A brochure explaining the District's West Nile Virus Risk Reduction Program, including how to protect yourself and how you can help, is available at the District office or downloaded here - 720Kb PDF
More information on WNv is available at: