More West Nile virus found in Hamilton region, this time in Caledonia

West Nile virus has been detected in mosquitoes in Caledonia, Ont., for the first time this summer.

The Haldimand-Norfolk Health Unit says itfound the virus in a pool of mosquitoes collectedon July 25.

West Nile has also been detected recently in the nearby cities of Brantford, St. Catharinesand Hamilton, as well as in the GTA and Ottawa.

Mosquitoes often pick up the virus after feeding on the blood of infected birds,says the Haldimand-Norfolk Health Unit.

West Nile can be transmitted to humans if an infected mosquito bites them.

The public health agency advises residents to avoid getting bitten by:

• Wearing insect repellent that contains DEET.
• Minimizing time outdoors,especially at dawn or dusk when mosquitoes are most active.
• Wearing light-coloured clothing.
• Coveringup with a hat, long-sleeved shirtand long pants.
• Removing all standing water from your property.

West Nile virus is primarily spread by the northern house mosquito.

Only a small number of people bitten by a mosquito carrying the virus will become infected.

About 20 per cent of those infected may experience flu-like symptoms including fever, headache, muscle aches and a rash fromtwo to 15 days after being bitten by an infected mosquito.

People who are immunocompromisedare at a greater risk of developing West Nile. The risk of severe illness tends to increase with age, says public health.