Cowgirl, I'm so sorry for you and your sick chickens. That's great that you will find out what the chickens had from UCD. I hope the rest of your birds stay healthy.Meg, losing a chick here or there is pretty common. Some of them are just weak and fail to thrive, without having any weird illnesses.
Speaking of, I seem to have turned a corner. I culled all of the birds actively sick, which was difficult. I haven't had any new cases for 24 hours now. I took two dead birds in to the Poultry Center run by UC Davis in Turlock. There I learned that it's best not to freeze the specimens, if anyone else might need to take some in. Preliminary results indicate that the birds had Infectious Laryngotraecheitis (sp?) but the vet had yet to do the histology. He said that the birds which have recovered are carriers, but the ones that never got it would be fine. So if that's the final diagnosis, I'll cull my two main flock roosters who recovered, but my little show birds who are all the way across the property and have had a sniffle should be fine. I'll wait until the vet confirms that though.
Are you pretty certain that you transferred it to them on your shoes after the fair? That makes me want to be extra cautious with my little backyard flock. As of now we have "chicken shoes" that everyone wears when they go into our backyard and remove before stepping back into the house. They are just old sandals that we can slip on/off easily. But it also makes me question whether or not I want to place my Silkies in the fair or poultry shows (because of biosecurity/or lack thereof). How frustrating to breed, hatch and raise our chickens to a certain standard or goal and then have them catch something. Wow-that's really disturbing. Do you plan to continue showing and what precautions will you take in the future?