Tomb Rot

Tomb Rot is associated with the remains of the dead and the undead. It can be contracted from crypts, catacombs, and the touch of the walking dead like zombies and the mummies of distant Araby. The disease makes the joints stiffen become increasingly difficult to move, and the skin takes on a leathery texture or deathly pallor.

Source
pg. 13
 * Warhammer Fantasy RPG 3rd ED -- Book of Plague