so, i have a 9 week old polish chick that acts blind--walks into the wall. He spins clockwise and I have not seen him eat or drink or poop since yesterday morning, but I've been at work so who knows. I have dropped water into his beak and he did swallow, but I can't get food into him. This morning, I treated as if for wry neck and gave him vit E and some liquified food. He was vaccinated for Mareks. What do I do going forward? If it's marek's, which some vaccinated birds still get, how do i protect the rest of the birds? 2 are older and were not vaccinated. They've all been together for the past month (after the isolation period). If I have to cull, do I need to do a thorough cleaning? or is that too late? I'd like to see him survive, but surely don't want to lose the others.