Brantford, ON – Grand Erie Public Health (GEPH) has been notified of a Brantford resident who has tested positive for West Nile virus (WNV). While most people who are bitten by an infected mosquito do not become ill, West Nile virus can cause serious illness in some people. Older adults and people with underlying health conditions are at greater risk of developing severe illness.
Residents are encouraged to take precautions to protect themselves and their families from mosquito bites, particularly from early evening to morning, when mosquitoes are most active and likely to bite, and when spending time in shady, wooded areas.
To reduce the risk of mosquito bites:
- Wear light-coloured, long-sleeved shirts and pants made of tightly woven fabric.
- Apply an approved insect repellent, such as one containing DEET, when spending time outdoors.
- Get rid of water-filled containers and other objects around your home where mosquitoes can breed. Change the water in birdbaths at least once a week.
- Avoid spending time outdoors from early evening to morning, when mosquitoes are most active and likely to bite, and take extra precautions when in shady, wooded areas.
In 2025, two human cases of West Nile virus were reported in the GEPH region. So far this season, two mosquito pools have also tested positive for West Nile virus.
Residents are encouraged to continue taking precautions against mosquito bites throughout the mosquito season.
For more information about West Nile virus, please visit geph.ca/west-nile
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“As West Nile virus activity continues to be detected in our region, we want to remind residents that simple preventive measures can make a big difference. Using insect repellent, wearing protective clothing and eliminating standing water around your home are effective ways to reduce the risk of mosquito bites and exposure to West Nile virus.”
- Dr. Jason Malenfant, Medical Officer of Health, Grand Erie Public Health.
Grand Erie Public Health
As one of Ontario’s public health units, we are determined defenders of community health. Our public health focus on prevention, protection, and promotion contributes to healthier outcomes across Brantford, Brant, Haldimand, and Norfolk.
We are unshakeable in our commitment to being a trusted and authentic source of public health knowledge, guided by the Health Protection and Promotion Act and the Ontario Public Health Standards. We safeguard the well-being of everyone – no matter who they are or where they come from.