“In summary, a zombie outbreak is likely to lead to the collapse of civilisation, unless it is dealt with quickly. While aggressive quarantine may contain the epidemic, or a cure may lead to coexistence of humans and zombies, the most effective way to contain the rise of the undead is to hit hard and hit often. As seen in the movies, it is imperative that zombies are dealt with quickly, or else we are all in a great deal of trouble.”
(Munz, Hudea, Imad and Smith, Mathematical Modelling of a Zombie Infection, Infectious Disease Modelling Research Progress, chapter 4, pp 135-156, Nova Press 2009)