When I first became a BYC type I read with concern about ABF and other illness' that can afflict my small flock via transmission by wild birds. I read here on BYC and other places how to contain my flock in ways to reduce their exposure to possible illness. This past week I have spent a dozen hours on screen reading how to medicate chickens. Three of my birds have died in the last week. I have spent a couple of hundred dollars on medicines and adding further safeguards to my system, linoleum floors, trying to sterilize the house, etc.. In the process I rethought this whole thing and I'm wondering, am I exposing myself, my family, my friends unknowingly to God knows what? My birds run free, a lot in my large yard, there is an abundance of wild birds here, everyone around has multiple feeders, even us. How safe are we from exposure? I'd blow my brains out if my grand kids got something from eating my eggs. The chicken system is very self contained, chainlink sections with chicken wire against that all the way around with corrugated tin to offer shade, keep it dry and keep wild bird poop off my birds stuff. Industrial food has its drawbacks, huge ones, but I don't believe I've ever worried about contracting ABF, or what ever, from pasteurized commercial eggs. Is it enough or is it a leap of faith?