Disease is a Dispel Type that can be inflicted by some bosses and mobs. They do only exist as Debuffs, not as Buffs. Disease debuffs tend to inflict various negative effects to attributes as well as Damage over time, and tend to be long-lasting effects (normally between 5 and 30 minutes). Mobs that cause disease are usually only those with some indicating word in their name, like "diseased", "rabid" or "tainted". Many Undead creatures cause disease.
See Category:Disease debuffs.
List of Diseases applied by Players
Currently Death Knights, Druids and Priests are the only class which can apply diseases.
- Frost Fever
- Blood Plague
- Crypt Fever (Turns into Ebon Plague with
[Ebon Plaguebringer] talent.)
[Infected Wounds] is a tier 8 Feral Talent.
Death Knights notably also have an ability called 
[Pestilence] that spreads diseases on their target to surrounding targets, including diseases from other players. There is also 
[Gift of Arthas], a Guardian Elixir which gives the imbiber a chance to inflict a disease on the target.
List of Disease-removing abilities
Diseases are curable by many methods, including class spells and items. Of the healing classes, Druids are the only class that cannot cure disease.
Item
