West Nile Virus Surveillance Halton Region 2016

West Nile virus activity is determined by the surveillance of:

  1. mosquito larvae
  2. adult mosquito pools
  3. human cases

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 2016

Week of July 17 - July 23, 2016

Halton Total Burlington  Oakville Halton Hills Milton
Mosquito Pools Positive for WNV Reported 1 0 1 0 0
#  Probable Human Cases Reported 0
0 0 0 0
#  Confirmed Human Cases Reported 0 0 0 0 0
#  Larvicide Applications to Standing Water 28 12 6 6 4

Year to Date 2016

Halton Total Burlington  Oakville Halton Hills Milton
Mosquito Pools Positive for WNV Reported 1 0 1 0 0
# Probable Human Cases Reported 0
0 0 0 0
# Confirmed Human Cases Reported 0 0 0 0 0
# Larvicide Applications to Standing Water 242 82 65 44 51

Prevention and Control Measures

Thirty nine standing water sites were larvicided during the week of July 17th to July 23th. Twelve sites were larvicided in Burlington, four in Milton, six in Oakville, and six in Halton Hills.

The third round of catch basin larviciding in Halton Region has begun and the indicator colour is pink.


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