I have a free range flock of about 27birds. So far I have lost 3 roosters to this, even after meds. One has survived but still has symptoms, two more developed the sniffles. I plan to seclude my egg layers, and med the water for everyone else. NONE of my hens have had symptoms. Question, are only the infected birds carriers or are ALL exposed birds carriers. If only the roosters have had it, will that affect any babies hatched? Including babies i have about 30 birds. and i really do not want to start over. I was using them, some for selling, some for show eventually, and of course for pets as well. This will make it very hard to do anything but keep eggs to eat. Suggestions? Advice? Should i just start over?