Will she eat or drink for you? When my hen was confined to a recyling basket, I fed her moistened chicken feed, scrambled chopped egg, bits of tuna, plain yogurt, and canned cat food, all with a little extra water since she would not drink. In the Mareks article, there is a section on various diseases that can mimic Mareks. A vaccine for Mareks is best given to day old chicks. If she has Mareks or the old chicken who died in June had it, they are already exposed to the virus. Some chickens may have immunity, and not all chickens who have symptoms die from it. There are mild strains and more severe ones.
