They are back - West Nile virus positive mosquitoes found in Burlington

News 100 redBy Staff

August 5th, 2016



If the heat doesn’t get the best of us – something else will.

We are told that a batch of mosquitoes trapped this week in Burlington have tested positive for West Nile virus (WNV).

This is the first WNV positive batch of mosquitoes collected from the city. An additional five batches of WNV positive mosquitoes were collected in Oakville. This year in Halton, there have been seven WNV positive mosquito batches to date.

WestNileVirus_transmission“Halton is committed to being safe and healthy and reducing West Nile virus in our communities through both education and preventative programs like larviciding,” said Dr. Hamidah Meghani, Halton Region Medical Officer of Health. “Until the hard frosts of fall set in, Halton residents should continue to protect themselves against mosquito bites and remove mosquito breeding sites.”

Urban areas are more likely to have mosquitoes that carry WNV. The types of mosquitoes that transmit WNV to humans most commonly breed in urban areas in places that hold water such as bird baths, plant pots, old toys, and tires.

The following are steps that residents can take to protect themselves and their families from mosquitoes:

• Cover up. Wear light-coloured, long-sleeved shirts and pants with tightly-woven fabric.
• Avoid being outdoors from early evening to morning when mosquitoes are most active and likely to bite, as well as at any time in shady, wooded areas.
• Reduce mosquito breeding sites around your home by getting rid of all water-filled containers and objects, where possible. Change the water in bird baths at least once per week.
• Use an approved insect repellent, such as one containing DEET or Icaridin.
• Make sure your window and door screens are tight and without holes, cuts or other openings.

A map showing the locations of standing water sites that have had larvicide applied this year is available at

To report standing water at public facilities or for more information about West Nile virus, please visit, dial 311or e-mail

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