Sam P. Brown is an evolutionary biologist in the School of Biology at the Georgia Institute of Technology. Following a Ph.D. from Cambridge University (2001) and postdoctoral fellowships in France and Texas, Brown has held faculty positions at Oxford and Edinburgh before joining Georgia Tech. Brown is a leader in the study of bacterial social interactions (communication, coordination and cooperation among cells), and their consequences for disease. His work combines theory and experiment, evolutionary biology and molecular microbiology, to understand the coupled dynamics of microbial gene-expression, ecology and evolution. Brown’s central research challenge is to understand how bacterial social interactions shape disease traits (virulence, transmission, emergence, resistance) and also present new opportunities for control.