Unfortunately I find a couple cases of it every spring when it is raining daily, I have always been able to keep it under control that is why I am a little shocked to see it now in chicks this young...Is it possible that I picked it up at a local fair (been going to alot of these lately) and drug it home with on me.?? I will also pick up some yogurt, will greek yogurt do, it's the only kind that I also like.....should I treat just the chicks or everybody, no signs of it in any other pens yet.....