I am new to chickens and probably about three months ago a chick I had hatched got this weird leg deformity but was still eating and drinking so I separated it from the bigger chicks, put it with littler chicks so it wouldn't get run over and made sure it could get to food and water. Stupid me. The chick has since died but now I know it had Marek's Disease. It was classic, one leg forward, one leg back, ended up dying, was very thin. So since I have lost 4 more chicks, I have another silkie chick sick now. I also have a new bunch of chicks in the bedroom that haven't been outside yet, they are lavender orps that I ordered from RockinPaints. So they haven't been vaccinated and they are about a week and a half old. I also have more in the incubator. I have read a lot of posts here on Mareks Disease. Actually have spent hours researching this on BYC. I have also called my vet who is supposed to call me back today. The little silkie that I am trying to save now doesn't really act like the others did. They all were eating and drinking right up to end (they were paralyzed and I culled them but they were eating and drinking still). This little silkie is about 18 weeks old. She will not eat or drink. She is just sitting. She is not laying on her side like the others did. She kind of bobbs her head around and is open mouth breathing. I have been syringing the save-a-chick solution into her but it is hard to get her to swallow it. I started her on poly-vi-sol yesterday and also gave her a shot of Tylan-50 just in case it isn't mareks. She refuses to eat at all. I have her separated from the other chickens and in a warm place. I don't know if I am doing the right things and she isn't any better this morning. I don't want to make her suffer. I did that enough with the first one that I didn't know what was wrong with it. And now am worried about my whole flock. Most of them have not been vaccinated. I ordered them as hatching eggs from people on here and raised them myself. I didn't even know about Mareks disease or that I should have vaccinated them at hatching. So anyone want to give me words of wisdom? I am just sick because I have worked so hard to take good care of all of them and do everything right and now this. Thanks for any advice.