Utah State University Extension
This fact sheet describes one of the most commonly diagnosed diseases of backyard chickens. The clinical signs of Marek's Disease are descriptively illustrated, and an objective plan for diagnosis and control are discussed in a format understandable to the general small flock and/or backyard chicken owner.
Frame, David D.; Tilley, Sarah; and Bland, Mark C., "Marek's Disease (MD, Range Paralysis, Gray Eye)" (2013). All Current Publications. Paper 323.