West Nile Virus was identified in a mosquito collected in Middleboro, town officials said Wednesday. Symptoms of the virus tend to include fever and flu-like illnesses. The virus has a more significant effect on people over the age of 50, according to health officials.

The Williamson County and Cities Health District has found mosquitoes with West Nile virus in a mosquito trap in Leander's Devine Lake Park. This is the first positive trap in the country for 2025, but last month a person in southern Williamson County tested positive for the disease.

A mosquito trap has tested positive for West Nile Virus in Williamson County. County officials say this marks the first positive trap of the 2025 season. So far this year there has also been one human case in the county reported of the virus.