She is 8-10 weeks old. I don't know if she was vaccinated for Mareks disease. She stands and walks around and east normally. I gave her some nutri drench earlier. The other older chickens chased her earlier and I put her and her 2 friends in our potting shed because she was stressed out being separated from them. Her toes are not curled under except when she sits down. I put a bowl of feed, water, and greens with them. I usually give them a mix of layer pellets and starter/grower because I have a mixed flock, but right now just starter grower since these three are younger. I also throw birdseed out in the yard for all of the chickens to pick at during the day.