In a little under half hour it will become October 31st 2010.
As a student of Zombiology you will no doubt anticipate that this is a good day for Zombies. The equivalent of Christmas. But images of a Zombie Santa stuffing tasty brains into stockings made from severed human appendages aside Halloween might scientifically be the prime moment for a Zombieism outbreak.
Most Zombies pass on Zombieism by biting, much like Rabies. Repulsive as this may seem it is not a particularly good way to pass on a virus or disease. If Zombieism could be passed through the air a sneezing zombie would be far more daunting than a biting one.
Because it would be easy to identify the human carrying Zombieism (i.e. the pale bloke biting random passers by) stemming an outbreak would be quite simple (i.e. kill them, kill them all.)
However under the cover of All Hallows Eve someone infected with Zombieism might succeed in biting more unsuspecting victims before they realise it isn't part of the evenings scheduled entertainment.
So Doctor Austin says, "remember kids don't let zombies be the trick in your treat on Halloween. Always carry a weapon capable of easily bludgeoning the human skull."
Happy Horror-Days!