Marek's in my chicken?!?

[littlechickenmama17]

One of our 12 week old chickens just died unexpectedly and we know have a 12 week old chicken too that can't walk on it's right leg... Is it Marek's? But the weird thing is that he can still move his foot but can't walk on his leg. What is it?? What do I do?? HELP PLEASE!!!!!

 

[Myrshine]

Only way to know 100% is to send the dead bodies off for a necropsy to be tested for Mareks Disease.