I have an americana hen about a year old. I noticed the other hens pecking her about a week ago. We brought her into the house and are keeping her in a box with food and water. She was limping at first and now has no use of either leg that I can tell. One leg sticks straight out when she tries to move and the other seems to stay tucked under her. I take her out to the yard (not with the other chickens) daily and let her hang out in a shady area for a couple of hours. She mostly doesn't move at all. I prop her up with a rolled towel on either side so that she is upright and doesn't get 'bed sores'. She was eating for the first few days (loved chopped almonds) but now shows no interest even in corn but still drinks water. My question is whether or not this is certainly Mareks disease. She was vaccinated at the hatchery. She's about a year old. This wouldn't be typical for Mareks disease but the symptoms seems to fit. I cannot find an injury or sore spot on her feet. Any help would be appreciated. I'm really worried about my other 13 hens too - 11 of them were vaccinated at the hatchery but I've got two wonderful seramas that I'd be devastated to lose. They are a couple of years old. Lastly, what can I disinfect with that is effective against Mareks to minimize contamination to the area just in case? One last question, I have a pigeon - can she contract Mareks? I don't know if the disease is specific to chickens and ducks or can spread further. I can't seem to get a definitive answer through a google search. Thanks everyone!!!!