I have a flock of 5- 3 year old Barred Rock hens. About 1month ago one of our hens Millie was experiencing symptoms of a sour/impacted crop. We were able to successfully treat this and she began to gain some weight back as she had gotten fairly thin over the course of a few days. We put her back in with the rest of the chickens and she began being harassed by the other hens and getting picked on. (We suspect it was due to her weakened condition). Then about a couple of days later Millie began limping. We thought that she may have been attacked by another chicken and injured her leg. At this point she was significantly smaller in size then her sisters. We then separated her to allow her to heal and gain back some weight. However, within a few days of separating her, her limping became progressively worse until she became completely paralyzed. She had now been paralyzed for just over one week and we have been thinking that it is possibly Mareks disease. Over the course of the week she began at first not that interested in food, we were giving her mealworms, grapes, and eggs. Over the past few days her eating has begun to improve and is now eating some of her regular chicken food. He poops are typically very runny but have also begun to firm up. We have been treating her with a vitamin B supplement made for chickens as well as a Rooster Booster supplement as we thought it could also possibly be a vitamin deficiency. Her demeanor seems pretty good aside from the fact that she cannot move and has diarrhea. I am wondering if you could give me advice on what you think it could be or if you agree with our suspicion of Mareks or if it could possibly be something else? For now our other hens seem happy and healthy, all have been laying eggs, behaving normally, and are at a healthy weight. Millie has been in quarantine since she started limping. Is there a chance that her condition can improve? If so can she ever be reintroduced to the others? We are trying to treat this on our own and any help or guidance you can share would be so greatly appreciated!