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 June 21 - 27, 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 60 15 26
8 11

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 230
71 96 21 42

Prevention and Control Measures

In total, sixty sites were treated in Week 25. Fifteen sites are located in Burlington, twenty six in Oakville, eleven in Milton and eight in Halton Hills. The second round of catch basin larviciding in Halton Region is continuing and the indicator colour is white.

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