If you see a zombie, decapitate it.

Source: BBC NEWS

Professor Robert Smith?, a really weird scientist from the University of Ottawa who has a "?" in his legal surname has built a scientific model of a zombie outbreak. According to the overpaid prof, zombies must be dealt with "quickly & aggressively" in order to prevent a great risk of civilization collapsing.
The entire scientific community is not in agreement, however, that the model is entirely accurate. A chief advisor of the United Kingdom's swine-flu control team acknowledged a variable that the study foolishly neglected; "My understanding of zombie biology is that if you manage to decapitate a zombie then it's dead forever. So perhaps they are being a little over-pessimistic when they conclude that zombies might take over a city in three or four days."

Sigh.