This article is about the virtual plague. For the legal concept of "corruption of blood", see Attainder § Corruption of blood. The Corrupted Blood debuff being spread among characters in Ironforge, one of World of Warcraft's in-game cities The Corrupted Blood incident (also known as the World of Warcraft pandemic[1][2]) took place between September 13 and October 8, 2005, in World of Warcraft, a m