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West Nile Virus and Mosquitoes

West Nile Virus & Mosquito Surveillance
The NWHU carries out weekly mosquito trapping throughout the Kenora and Rainy River Districts during the summer months. Find out more about trapping and the 2014 results.


Preventing West Nile virus
The risk of coming into contact with the mosquitoes that carry West Nile virus in our region is low. The risk is not zero however, and there is no way of knowing which of the mosquitoes biting you might be carrying West Nile virus.

The best way to reduce your chances of infection with West Nile virus is to avoid mosquito bites. Take the following simple precautions to protect yourself from bites:
  • Use insect repellent containing DEET, Icaridin or other approved ingredients on clothing as well as exposed skin. Always read and follow label directions.
  • Wear light-coloured clothing, a long-sleeved shirt and long pants.
  • Make sure screen doors and windows are in good repair to keep mosquitoes outside.
  • Empty standing water around your home and property (e.g. flowerpots, gutters, pet water dishes, and birdbaths) on a regular basis, because mosquitoes breed in standing water.


West Nile virus in humans
West Nile virus is transmitted to a person from a mosquito that has bitten an infected bird. Most people infected with West Nile virus have no symptoms and do not feel sick. Some people will have mild symptoms that usually appear within two to 15 days after infection. These symptoms include fever, headache, body aches and mild body rash.

Less commonly, persons infected with West Nile virus will become severely ill with infection to the outer coating of the brain and spinal cord which can result in long term damage or death. If you or a family member are experiencing serious symptoms and health effects, or have concerns about any symptoms, contact your healthcare provider right away.


For more information please contact your local health unit office.


   External Links:
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    Government of Canada

   Internal Links:
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    West Nile Virus & Mosquito    
    Surveillance

Public Health Question
  • Q:
    I have bought a dwelling that is serviced by an advanced treatment unit. Are there any requirements?
    A:
    ​Yes. All owners of private sewage systems are required to keep their systems in accordance with the original approval. For advanced treatment units this means that you are obligated to remain in contract with an authorized service provider for ma...