Surprising even Blizzard, the Wrath Classic Pre-Patch Scourge Invasion began early last week, but players began to notice some aspects of the Zombie Plague stopped working yesterday. Josh Greenfield confirmed on Twitter, the Zombie event has ended.
While Conspicuous Crates still exist around the world, they do not apply a Debuff
Argent Healers are no longer present in cities and the Conspicuous Crates will not apply the disease You’re Infected! debuff any longer.