Sangre Corrupta!

The Corrupted Blood plague incident was one of the first events to
affect entire servers. Patch 1.7 saw the opening of Zul'Gurub, the
game's first 20-player raid dungeon where players faced off against an
ancient tribe of jungle trolls under the sway of the ancient Blood God,
Hakkar the Soulflayer. Upon engaging Hakkar, players were stricken by a
debuff (a spell that negatively affects a player) called "Corrupted
Blood" which would periodically sap their life. The disease would also
be passed on to other players who were simply standing in close
proximity to an infected person. Originally this malady was confined
within the Zul'Gurub instance but made its way into the outside world
by way of hunter or warlock pets that contracted the disease.

Within hours Corrupted Blood had infected entire cities such as
Ironforge and Orgrimmar because of their high player concentrations.
Low-level players were killed in seconds by the high-damage disease.
Eventually Blizzard fixed the issue so that the plague could not exist
outside of Zul'Gurub.

The corrupted blood plague so closely resembled the outbreak of
real-world epidemics that scientists are currently looking at ways
MMORPGs or other massively-distributed systems can model human behavior
during outbreaks. The reaction of players to the plague closely
resembled previously hard-to-model aspects of human behavior that may
allow researchers to more accurately predict how diseases and outbreaks
spread amongst a population.

Y llegaron los Recios, se tiraron a Hakkar al más puro estilo te meto hasta que te hartes y erradicaron hasta la enfermedad...



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