I have 2 rhody/sussex 6 months old that have the same symptoms. The 1st one that showed signs of illness was acting strangely. She would stagger around the yard or limp and I thought she had hurt her leg. I couldn't find any signs of an injury so continued to observe her. She continued to deteriorate to a point where she couldn't walk at all. I isolated her from the others and made her comfortable. She had severe diarrhea then, but has improved. She's happy as can be, eats and drinks, but can't walk. She has been like this for the past week now with no marked improvement in the paralysis. I thought it might be Coccidia so have been treating her with Sulmet. The 6 day regiment is up tomorrow and one chicken expert said to wait a week and see if there is any marked improvement and if not to start her on antibiotics. Now her brood mate has come down with similar symptoms, but her paralysis is a wing and leg and lethargy. I have put them both in isolation together. I have read up on Marek's Disease, but the 1st hen's legs are not splayed like the photos show. She just shifts her wait and uses her wings to scoot around dragging her legs with her. Most of the time they are stretched out in front of her. The second hen shows the tall tale signs with the paralyzed wing and leg. Could it be poisoning of some sort? It it was wouldn't it be out of the 1st hen's system by now after a week's time? HELP! THANK YOU.