Zombies have spread like a virus through popular culture. They’re also a useful, albeit fanciful, way to demonstrate how a real virus might spread in the human population, says Robert Smith?, an associate professor in the department of mathematics and statistics at the University of Ottawa the professor spells his name with a question mark. He has become the go-to guy for the mathematical modeling of a zombie outbreak ever since the publication of his first paper on the subject in 2009.

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