Back in 2005 World of Warcraft ... the plague amongst each other in true 2005 fashion. It's not clear how the debuff got out of the raid instance this time. Some have suggested it wasn't that ...

Engrave your chest or robe with the Void Plague rune: Afflicts the target with a disease that causes (* 117 / 100 * 6) Shadow damage over 18 sec. 13% of base mana ...