The Waterloo region has confirmed its first human case of West Nile Virus in 2026. Public Health made the announcement on October 2, advising the public to remain cautious outdoors despite the cooler weather. Dr. Rabia Bana, Associate Medical Officer of Health, emphasized the need for residents to protect themselves from mosquito bites until the first frost occurs. Mosquito activity is still prevalent due to the ongoing mild temperatures.
Residents are urged to take preventive measures while outdoors, including eliminating standing water on their properties to reduce mosquito breeding grounds. Symptoms of West Nile Virus usually appear within two to 15 days after being bitten by an infected mosquito and may include mild fever, headache, muscle aches, stiff neck, swollen glands, and skin rash. Severe symptoms are rare, but individuals experiencing them should seek medical attention promptly.
To safeguard against mosquitoes, residents should use window screens, wear light-colored clothing with long sleeves, pants, hats, and socks, apply insect repellent containing DEET or icaridin, avoid outdoor activities during dawn and dusk when mosquitoes are most active, and maintain a clean outdoor environment to prevent mosquito breeding. Public Health also advises against handling sick or dead birds, as they can carry the virus.
In the previous year, Waterloo region reported three human cases of West Nile virus.