It was only found in mosquitoes so far and they say mosquitoes only travel a short distance. They're spraying a 1/2 mile radius around where it was found. I think my birds may still be done going outside for the summer. That is just too scary. I'll learn more about it before deciding. I don't know that much about it since this is my first time being in an area where it's a problem. I didn't even know it was a problem before this. I'm off to use google. I'll post what I find in case anyone searches it later. Does anyone have anything to add?