Erica Nelson is historian and anthropologist with two decades of experience working on issues of community-based public health, health systems development, sexual and reproductive health and rights, and the politics of knowledge in health research. Her work focusses on the entangling of past and present, with a particular focus on critical examination of the unequal power dynamics and hierarchies of knowledge in global health and development as they have been shaped over time. She is a currently a research fellow within the IDS Health and Nutrition Cluster. She has previously worked at the London School of Hygiene and Tropical Medicine's Centre for History in Public Health and at the University of Amsterdam's Amsterdam Institute for Social Science Research.