devora, I didn't have anything bad happen. I've only added one adult bird in all my time of owning chickens and that was because I wanted a rooster ready-to-go, so to speak. I did more than a month of quarantine with Hawkeye. I treated favus on his comb and face, lice, malnutrition and he had a funny way of breathing that was just him, not any disease, but it was very, very stressful.
Near the end of quarantine, we, on the advice of a well-known poultry expert, checked his throat for canker because of his odd breathing sound (odd to me, but just a rooster's deep-chested breathing) and he had clumps of wet feed stuck to the sides of his throat. It looked EXACTLY like the photos of canker in the throat. That meant he would have to be put down rather than take his place in my flock. Let me clarify that TO ME it meant he must be put down. I wouldnt treat those types of things and risk exposing my healthy girls to anything. I refused to lose him before looking at his throat again and voila! GONE! It was just feed stuck to his throat. I felt stupid but so relieved, I didn't care.
Even if someone was NPIP certified, I am just a cautious person with my birds. I myself would quarantine any birds entering my flock. Just because they are tested for a few diseases, doesn't necessarily mean that they aren't carriers of SOMETHING. Everyone must make up their own minds. Please don't think I'm saying I'm some type of authority on all of this-I just do not want anyone to experience the heartbreak I've seen others go through. You must make up your own mind the risks you are willing to take and know that there are risks.
