Prof. Till Bärnighausen is an Alexander von Humboldt University Professor Director, Heidelberg Institute of Global Health. Prof Till is a trained medical doctor with a Doctor of Science (ScD) in Population and International Health with a passion in population health research mainly focused on: (i) establishing the causal impacts of large-scale global health interventions – such as HIV treatment and HIV prevention 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. He has been the principal investigator on grants from various science funders, such as the European Union, the Wellcome Trust, Elton John AIDS Foundation, and the Clinton Health Access Initiative.  He has also received research funding from Harvard, Rush Foundation, the German Academic Exchange Service, USAID, WHO, UNAIDS and World Bank. Prof Till has published more than 300 articles in peer-reviewed journals.