Seeking advice as I am a newbie. I have brought home 3 new chickens and now one is breathing a little heavy and raspy. I presume she has a virus and it was brought out by stress Eyes clear,no nasal discharge, comb red, no external parasites, active-only symptom is the heavy breathing. All three are in quarantine and have not been introduced to my other hens. My question is, if she is treated for her respiratory virus and recovers - will she be a carrier and infect my others once she has no symptoms. Should I contact the person, I purchased them from? Is this common? The place I purchased them from was clean, lots of out door space so ventilation not an issue etc so I am not pointing fingers just don't know the protocol. Thx for the advice.