It was quite an interesting little episode really. A lot of researchers are interested in gaining statistics for it because its so similar to real life epidemics (including reactions and the methods employed to deal with it). In fact the only real differences were that;

  1. You can't change the symptoms of an illness (but WoW is just a patch away from changing just about every status effect in the game).
  2. Corrupted Blood could only really be spread deliberatly (or at least its hard to spread by mistake).