So we, stupidly, got chickens from a random person. Ends up they were sick. We took them to the vet and have them on antibiotics. The vet says it's a sinus infection. Their symptoms are stinky snot and sneezing. Poop is a little watery but all else seems fine (appetite, energy, drinking, clear eyes, etc..). We got them away from our other chickens less than 12 hours after introducing them (now we know the value of quarantine). This all happened one week ago and our three other girls have showed no symptoms of this sickness. IF the antiobiotics clear this thing up, what's the next step. We'll be keeping the new ones separated for 1-2 months, to make sure all is going well. But, we're just small-time chicken people on a city lot. These are our pets too. We made a mistake in getting cheap chickens from an unknown source. But, I won't pass along birds that may be carriers of a disease (assuming it's something like coryza). And killing them isn't an option either. It's impractical but I can't kill animals that, besides having snot that smells like poop, seem really happy tearing it up in the yard. So, what have others done in this situation? I don't want to infect my healthy chickens with healthy-seeming chickens that carry a disease around. Do I just keep two pens of chickens?