Kirsten Riber Philipsen works with modelling of complex stochastic dynamical systems; her focus is on mathematical models for the evolution of antibiotic resistance in bacteria populations and the spread of resistant bacteria between people in a human population. Antimicrobial resistance is a still increasing problem, which has limited the lifetime for antibiotic for treatments of humans as well as animals. This leads to a great need of developing new treatment methods or ways in which the resistance development can be delayed. Kirsten works on increasing the understanding of the evolution process through mathematical modelling and statistical analysis, especially using Stochatic Differential Equations. Kirsten Philipsen is experienced in working on cross-disciplinary projects with microbiologists, e.g. with design of experiments. Her research is part of a larger project titled "Evolution and adaptation of antimicrobial resistance in bacterial populations" (www.antibiotikaresistens.dk/evolution).