Health unit warns of West Nile risk after 2nd mosquito batch tests positive

Understanding the factors that attract mosquitoes can be helpful for avoiding their bite. (Shutterstock)

The Simcoe Muskoka District Health Unit (SMDHU) is urging residents to take precautions against mosquito bites after a second batch of mosquitoes in Barrie tested positive for West Nile virus (WNv).

The health unit reported the first positive test on August 14.

WNv is primarily spread through the bite of an infected mosquito, which becomes a carrier after feeding on an infected bird.

The risk of contracting WNv from mosquitoes is highest in late summer.

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To reduce the risk of mosquito bites, the health unit recommends using approved mosquito repellent and following the manufacturer’s instructions.

Residents are also advised to wear light-coloured clothing that covers the arms and legs, especially in areas where mosquitoes are active.

Health experts say it’s best to stay indoors during peak mosquito activity times, typically at dusk and dawn.

While many people bitten by an infected mosquito will not show symptoms, West Nile virus can sometimes lead to serious illness.

Symptoms to watch for include fever, muscle weakness, stiff neck, confusion, severe headache, and sensitivity to light. In rare instances, the virus can cause serious neurological issues.

Anyone experiencing these symptoms should seek medical advice promptly.