The Barrie, Ontario case has had a lot of press this summer. The issue is EHS (electrohypersensitivity) and the suggestion that EMF is a contributing factor.
There is no credible scientific evidence that Wi-Fi or any other source of EMF can cause EHS.
If this is a cause for concern, please click here for the real science behind it, provided to me by Dr. Joe Schwarcz, PHD and Director of the McGill University Office for Science and Society. He is one of the most interesting and entertaining *real* scientists I have the pleasure of listening to.