A character that is diseased takes health damage per round. The amount of damage caused decreases each round that damage is dealt.
Causes of Disease
Disease can be inflicted by a number of means. The most common, and the one that most players will encounter, is upon being struck by a melee attack by certain enemies. The attack need not cause a wound, but similarly, the disease is rarely guaranteed; rather, being inflicted with a disease is often an uncommon occurrence. A number of enemies are capable of inflicting diseases, but the most common are animals, from the lowly giant rat up. Additionally, many undead are capable of inflicting diseases.
A final source of disease is the Sorcerer spell Pestilence (716). The disease manifests as a Damage Over Time effect caused by a direct warding hit with the spell, or a reactive flare upon attacking something or someone wearing the spell.
Diseases dissipates as they causes damage. For example, diseases with a rate of dissipation of 5 per round that causes 60 damage per round will cause 60 damage in the first round, then 55, then 50, until the damage per round reaches 0 or less, in which the character will no longer suffer damage from the disease. Dissipation rates of 0 have been seen, which means the disease will continue to do damage until it is cured.
While diseased, the HEALTH verb will display the following:
!>health Maximum Health Points: 145 Remaining Health Points: 125 Maximum Spirit Points: 9 Remaining Spirit Points: 9 Maximum Stamina Points: 60 Remaining Stamina Points: 60 Diseased! Taking 18 damage per round. Dissipating 2 per round.