Rebecca Chisholm is a postdoctoral researcher in the Melbourne School of Population and Global Health working with Nic Geard. She uses mathematical models of population dynamics together with evolutionary theory to (1) gain insight into the way organisms may have evolved in the past and (2) to predict how organisms may respond to changes in their environment caused by their own actions or other external factors. Rebecca has worked on a range of topics including the emergence of drug tolerance in cancer-cell populations, the evolution of latency in Mycobacterium tuberculosis, and the impact of human cultural change on the emergence of novel infectious diseases. She is now collaborating with other researchers affiliated with PRISM2 to investigate the spread of skin infections, a major cause of poor health in Australian Indigenous and Fijian populations.