Recent virus epidemics such as the Swine Flu have reached the attention of governments, public health officials, and the media, emphasizing the importance of predicting and controlling the patterns of viral infection. Besides the unquestionable value of human life, decreased worker productivity as a result of illness costs industry large amounts of money. In spatial epidemics as in science in general, models have followed both a top-down and bottom-up approach. Space is very difficult to represent in top-down models, and therefore most of these models have a very simple spatial dimension, if...