To the best of our knowledge zombies aren't real, but if there ever is a zombie outbreak in the future we now have an epidemiological model we can use for predictive analysis. Created by several Canadian mathematicians at the University of Ottawa, "When Zombies Attack! Mathematical Modeling of a Zombie Outbreak!," has been published in "Infectious Disease Modeling Research Progress" by Nova Science Publishers.
Here's the abstract:
Zombies are a popular figure in pop culture/entertainment and they are usually portrayed as being brought about through an outbreak or epidemic. Consequently, we model a zombie attack, using biological assumptions based on popular zombie
movies. We introduce a basic model for zombie infection, determine equilibria and their stability, and illustrate the outcome with numerical solutions. We then refine the model to introduce a latent period of zombification, whereby humans are infected, but not infectious, before becoming undead. We then modify the model to include the effects of possible quarantine or a cure. Finally, we examine the impact of regular, impulsive reductions in the number of zombies and derive conditions under which
eradication can occur. We show that only quick, aggressive attacks can stave off the doomsday scenario: the collapse of society as zombies overtake us all.
Found at BoingBoing.net