Prof. Dr. Dr. Till Barnighausen (MD, ScD, MSc, MSc; Medical Specialist in Family Medicine) is the Alexander von Humboldt University Professor, Director of the Heidelberg Institute of Global Health at Heidelberg University, Germany, and Co-Chair of the Lancet Commission on the European Health Union. Till’s research focuses on three main areas: (i) establishing the causal impacts of large-scale global health interventions – such as HIV treatment, HIV prevention, and childhood vaccination – on health, economic and social outcomes; (ii) identifying and testing innovations to improve the delivery of global health interventions through public-sector health systems, and (iii) developing new methods for applied population-based health research. Till has been the principal investigator on grants from a range large science funders, such as the US National Institutes of Health (including five R01 grants), the European Union, the European Commission, the Alexander von Humboldt Foundation, the Wellcome Trust, the International Initiative for Impact Evaluation (3ie), Elton John AIDS Foundation, and the Clinton Health Access Initiative. He has also received research funding from Harvard, Rush Foundation, William F. Milton Fund, Andrew W. Mellon Foundation, the German Academic Exchange Service, International Development Research Centre Canada, USAID, WHO, UNAIDS and World Bank. Till is Adjunct Professor of Global Health at the Harvard T.H. Chan School of Public Health in the US and a Senior Faculty at the Wellcome Trust’s Africa Health Research Institute (ARHI) in South Africa. He has published more than 300 peer-reviewed articles, including in Science, PNAS, Lancet, and PLOS Medicine. His work has been cited more than 17,000 times; his h-index is 63 and his i10-index is 205.