Reducing the Risk of West Nile Virus

The most effective way to prevent a West Nile virus (WNV) infection is to avoid mosquito bites. For additional WNV services and information, including information for health professionals visit the West Nile virus Government of Canada website.

  • Wear light-coloured, long-sleeved shirts and pants when outdoors.
  • Apply an insect repellent approved by Health Canada (Personal Insect repellents – Canada.ca ), following the manufacturer’s instructions.
  • Take extra care during peak mosquito biting time (dusk and dawn) by using mosquito repellent and wearing protective clothing.
  • Remove standing water from your property, where mosquitos can breed.
  • Ensure your home has tight-fitting screens on windows and doors.

Mosquitos develop in stagnant water. You can reduce the number of mosquitos around your home if you eliminate stagnant water on your property.

Areas on your property where mosquitoes can breed
Areas on your property where mosquitos can breed.

A – Keep your yard clean

Uncovered garbage containers and junk piles collect water in which mosquitos can breed.

B – Always inspect pools and ponds

Poorly maintained pools and swimming pools can be breeding sites for mosquitos.

C – Clean out eaves, gutters and drains

Clogged gutters will accumulate water and create a place for mosquitos to breed. Check flat roofs frequently for standing water.

D – Eliminate stagnant water

Clean up and empty water in toys, birdbaths, tires, flowerpots, wheelbarrows, and other garden objects where mosquitos can breed.

E – Maintain yards and lawns

Fill in low depressions in lawn areas. Eliminate standing water in gutters or storm drains to prevent small ponds. Install screens over catch basins. Turn compost over frequently.

F – Fix faucets and hoses

Repair any leaks to faucets and hoses to prevent possible breeding sites. Prevent water from pooling around downspouts and air conditioners.

G – Repair window screens and screen doors

Crawl spaces, attic vents, and broken screens allow mosquitos to enter your home. If you don’t have screens, try to keep windows closed between dusk and dawn.

Since 2009, Ontario no longer conducts a West Nile virus dead bird surveillance program.

If you find a dead bird on your property:

  • Do not touch a dead bird with your bare hands.
  • Wear gloves, use a shovel or use a double plastic bag to pick up the bird.
  • Place the dead bird into a plastic bag and double bag it.
  • Close or tie both bags tightly.
  • Place the dead bird in your regular garbage.
  • Wash your hands thoroughly afterwards with soap and water

If Toronto Animal Services is picking up the dead bird, store the bird in a cool place until arrangements have been made for pick up.