Yep! Thanks....
I was doing "cartwheels down the hallway" as the old saying goes...and in a hurry to post.
Had said that I would test again before dispersing the flock, and did take a cockerel up to Center, TX to the Texas A&M Veterinary Medical Diagnostic Laboratory. The vet took the little guy at the back door, and inspected him thoroughly and said he shows absolutely zero signs of any illnes/infection. (Clear eyes, no nasal discharge, clean feathers, healthy looking chicken etc. Dr. showed me how to gather the tracheal swab to test, and I brought swabs and medium to test some individual birds without the need to euthanize them (They are in the fridge). The cost would be $35 per test. The PCR was only something like $42.
Isn't that something, a while back in this thread I was speculating on the ability to test without euthanization, and now I have what I need for that right here.
As it will stand, I can individually test the birds that would travel to new home where someone else would have other chickens. As it stands the birds dispersed out have not had other chickens, or had gotten earlier chickens from me. These chicken keepers were neither breeders or showers...just pet chickens, egg layers, backyard keepers. Now that the flock is probably clean, the chickens could safely go to homes with other chickens.