I'm confused.. i'n trying to figure out if we have IB or Coryza. The birds are slightly listless, rattling breaths (like purring), runny eyes (cleared that up with meds), slightly swolled sinuses/eyelids, and no eggs. My EEs haven't laid an egg in forever. So we're trying to figure out what it is so we know how to treat it. Are there any sure fire signs that you have one vs another? More questions.. Will any bird I introduce come down with it? I have chicks in the kitchen now, and i'm worried about them catching it. The eggs laid by the few that aren't sick- will they get contaminated from being in the same coop? I don't want to bring the bug inside to the babies. Can it ever go away? Am I always going to have to treat for it?