Okay so one of my birds is showing the classic sign of Marek's Disease. Basically the leg thing. Her eyes haven't changed colors or anything. Well one thing will saw basically all chickens should be "expected" to have it. It basically an aireal type of herpies (kinda like chicken pox) and once they have it they always well and can shed the virus at anytime. But another article will say to distroy infected birds??? But am I only distroying birds with syptoms even thou most likely all my birds carry it? Also they have a vaccine, but the vaccine is the live virus, being so... dosen't that infect my flock with the virus, they can shed and carry it still?