I majored in Computer Science at Manchester University. I work on Computational Science: mathematical modeling of biological systems using dynamical system. I am trying to understand the dynamics of biological systems, especially the spreading of HIV. Understanding model behaviour could improve our understanding of the mechanism of disease, at least in some limited context. The creation of models has been essential in many important advances in biology. The power of modern computers and theoretical methods are designed to interrogate complex systems so we can aid our understanding of disease. I must say that the support from the Gates Foundation is splendid.