I am an epidemiologist with a particular interest in the control and prevention of HIV and other STIs. I am particularly interested in the structural and social drivers of HIV risk, their influence on access to available prevention services and developing and evaluating programmes to reach populations with limited access to available services. I am also interested in how place and social networks influence access to health services. My research to date has mainly focussed on strategies to increase uptake of HIV testing services, as a gateway prevention and care. I currently work on two HIV self-testing trials and an impact evaluation of the DREAMS initiative, a combined package of interventions to reduce the risk of HIV among adolescents girls and young women, in Zimbabwe.