Mathematicians use zombies to learn about swine flu

This article in Healthzone.ca discusses the work of Robert Smith? (the question mark is part of his name), a mathematical epidemiologist at the University of Ottawa. Who says mathematicians don't have a sense of humour? Fun and games is all part of Smith?'s work, actually, which I think is great. Hopefully I will be able to keep fun and play alive also in the mathematics courses I will be teaching.