I just bought 20 chicks from McMurray hatchery and they are now 2 weeks old. There are several breeds. I have 2 Cornish x and one has always been smaller but I thighs little of it until today I found the smaller one stuck inside the feeder and unable to get out. I pulled her out and that's when I noticed she couldn't move. She just flops when I put her down and can't control her legs, wings, or head. Is this mareks and if so what do I do? I have older hens that were vaccinated but these baby's were not. I didn't get the vaccinated because they are for my mom and she wants to raise them organic and I didn't know if the vaccine was ok for organic or not