West Nile shows up in Mitchell
A mosquito in Mitchell has tested positive for West Nile virus.
The Perth District Health Unit says this is the first positive test in Perth County this season.
“West Nile virus activity has been low so far across Ontario, but it’s not surprising to see activity begin to increase as historically we get positive mosquito pools around this time,” public health inspector Stephanie Carlisle said in a press release.
The health unit has been trapping and testing mosquitoes since June. Staff also applied one round of larvicide in roadside catch basins in Stratford, St. Marys, Listowel and Mitchell to help reduce mosquito breeding. A second round was scheduled for early August.
There have been four probable or confirmed cases of West Nile virus in humans reported this year, according to the health unit. Typical symptoms – not all people bitten by infected mosquitoes will show symptoms – include fever, headache, body ache, nausea, vomiting and rashes. In some cases, symptoms include high fever, muscle weakness, vision loss and coma. They usually develop between two and 15 days after being bitten by an infected mosquito.