From the Simcoe Muskoka District Health Unit

The Simcoe Muskoka District Health Unit (SMDHU) continues to see West Nile virus (WNv) activity in our communities with a positive test reported in a bird in the City of Barrie and a second mosquito pool testing positive for the virus in the Town of New Tecumseth.

These positive results are in addition to the positive test in a bird in the municipality of Bradford West Gwillimbury during the month of July and a positive mosquito pool reported last week in New Tecumseth.

To date, no human cases of WNv have been reported in Simcoe Muskoka in 2025. However, the health unit is reminding the public that an increase in virus among birds and mosquitos presents a higher likelihood that the virus can spread to humans. West Nile virus circulates betwee

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