I have 5 healthy chickens thriving in the same coop (2Roos and 3Hens). 7/1/2011 I picked up a young hen at a local breeder. Thanks to this wonderful web site I knew to quarantine her. I noticed she had a runny stinky nose so I treated her with 2 different antibiotics. Duramycin for 1 week and sol-met for 3 days. She did not improve. Knowing that I will probably always have chickens I took the plunge and brought her to a local vet that is willing to treat chickens in Deland, FL. They took a swab of her nares and narrowed her strain of bacterial infection down so we started her on Doxy. To pin point the exact bug the testing would have costed $400 which I am not prepared to spend. I am hoping she responds to the Doxy and can live a happy healthy life. She will have several more weeks of being in quarantine. The vet was wonderful the bill wasnt too bad and I left with peace of mind. Just wanted to share my experience. Thanks!!