Damn fun event.

Even one player controlled zombie can wreak havoc on smaller towns. Groups of us managed to totally wipe Ratchet and the Crossroads off the map earlier. Also of note: alliance and horde can talk to eachother in Zombie-ish when transformed, so yay for being able to talk to the horde you just dropped.

Seems to be an ever evolving event as well. While initially the plagued grain crates were only in Booty Bay, they're now all over, plagued roaches are infesting towns that create infectious clouds when killed and the incubation period for the disease is now down to only 5 minutes. Looking forward to see where this world event is heading.

Infection is now down to 2 minutes before zombification, a new boss has appeared in Karazhan and there are necropolises flying over all of azeroth spewing undead everywhere.

Something big is gonna go down soon.

Update:

Infection time down to 60 seconds, argent healers have all but vanished from major cities, turning them into zombie filled free-for-alls and necropolises are beginning to actively attack zones with squads of level 70 mobs you can drop for argent dawn quests.