What is the realistic % that I will have an issue with this? It was probably a few days after having both new Ameraucanas that they were around my 2 red sex links that I have had for several months. And then a few other times since then. I havent noticed anything weird on the new ones, and all 4 are acting normal still, even though it hasnt been that long yet. I am just wondering how often there is actually a problem when they arent quarantined properly? They live/sleep in seperate coop's.