Interactive map on website tracks West Nile Virus activity

Residents can now log onto www.pdhu.on.ca and chart West Nile virus activity in Perth County through an interactive map. The map tracks the Health Unit’s adult mosquito surveillance and testing of dead crows and blue jays. The map will be updated every week in West Nile virus season through the summer and fall.

The map of Perth County features symbols of mosquitoes and crows at various locations. When the user places the computer mouse over the crow or mosquito, an information box appears. The mosquito buttons show how many mosquito traps are hung in that area and how often they are checked. The crow buttons show how many dead crows or blue jays have been sent for testing. It also shows how many birds have tested positive or negative for West Nile virus.

“The map is an illustrative way to show how we track West Nile virus in our community,” says Dale Lyttle, senior public health inspector, in a press release. “Testing mosquitoes and dead birds lets us know if and when West Nile has arrived in Perth County so we can react appropriately.”

Throughout the summer, the Health Unit is also running a blog written by its West Nile virus student, Joanna MacDonald. The blog is posted on its website at www.pdhu.on.ca as well as on www.urstratford.com and www.urwestperth.com.

So far in 2008 no dead birds or mosquitoes have tested positive for WNV in Perth County. In other areas of Ontario, two mosquito pools and eight birds have tested positive for WNV.  

As the summer goes on, the risk of WNV increases. To stop WNV from spreading in Perth County, residents are advised to:

• Clean up standing water around the home once a week. Drain areas such as old tires, kids’ toys and wheelbarrows, and frequently change water in birdbaths.

• Apply insect repellent when outdoors. A repellent with DEET offers the most effective protection. Always follow the manufacturer’s instructions.

• Cover up with light-coloured clothing when outdoors, such as long sleeves, pants and socks.

• Take extra protection measures between dusk and dawn when mosquitoes are most active.

• Call Health Line at 519-271-7600 ext 267 to report a dead crow or blue jay.