Max has shown some improvement. She eats and drinks if I hold it up to her. The labored breathing has dramatically decreased. Her diarrhea went away and her overall strength has improved to the point that she tries to stand on her good side. The paresis of the left leg;however, has continued to get worse. She now has that splayed position that is typical of marek's disease. I often find her with the left leg completely extended and her laying on her right side. Her color hasn't returned either. I think I have reached the point where there is nothing else I can do, so I made an appointment at the vet for her to be put down tomorrow afternoon (she is one of our favorites, so it would be very hard to see her go any other way). I too agree that it is very likely that she may also have the visceral form of the disease, so even with the short term improvement, that is likely to get her in the end. Ultimately, laying on your side being hand fed is no way for a chicken to live, so it is time to say goodbye. Thank you again for all your help!