My research interests are on mathematical epidemiology, the modeling of disease dynamics, population biology and social dynamics, hot topics today. In particular, my research is driven by the study of the mechanisms underlying the spread of infectious diseases, their control and prevention. I also work on theoretical approaches to study dispersal on epidemics and the impact of transient populations on disease dynamics. In the past, I have study the role of epidemiological modeling approaches and methods on the deliberate release of biological agents (smallpox) and the role of peer pressure on various social processes such as smoking, ecstasy use and obesity. The mathematical tools involve on these modeling approaches are, among others, ordinary and partial differential equations, dynamical systems, difference equations, integral equations, linear algebra, probability and statistics.