West Nile Virus Surveillance - Halton Region

West Nile virus activity is determined by the surveillance of:

  1. mosquito larvae
  2. adult mosquito pools
  3. humans

Protect yourself.

Wear long-sleeved shirts, long pants, socks and shoes when outdoors in the evening or early morning. Use an insect repellent approved by the Pest Management Regulatory Agency (PMRA).

Remove standing water.

Remove or change all standing water around your home to reduce potential mosquito breeding areas.

West Nile virus Surveillance Halton Region 2015

Week of July 19 - 25, 2015

Halton Total Burlington Oakville Halton Hills Milton
Mosquito Pools Positive for WNV Reported - - - - -
#  Probable Human Cases Reported 0
0 0 0 0
#  Confirmed Human Cases Reported 0 0 0 0 0
#  Larvicide Applications to Standing Water 57 21 26
4 6

Year to Date 2015

Halton Total Burlington Oakville Halton Hills Milton
Mosquito Pools Positive for WNV Reported - - - - -
# Probable Human Cases Reported 0
0 0 0 0
# Confirmed Human Cases Reported 0 0 0 0 0
# Larvicide Applications to Standing Water 475
144 200 48 83

Prevention and Control Measures

In total, fifty seven sites were treated in Week 29. Twenty one sites are located in Burlington, twenty six in Oakville, six in Milton and four in Halton Hills. The third round of catch basin larviciding in Halton Region has been completed and the indicator colour is pink.

For more information about West Nile virus, please call the Halton Region Health Department.