Most of his recent work has been in the area of infectious disease modelling, but he is also interested in Bayesian & computational statistics, experimental design, disease surveillance methods, spatio-temporal modelling, and statistical modelling in general. He currently has a research group of over 10 graduate students. Previous to his post at Calgary he had a 8-year long faculty position at the University of Guelph and postdoctoral positions at the Universities of Cambridge and Warwick.