The Team
BiL is led by two practitioners who have spent their careers at the intersection of behavioral science, public health research, and implementation of field-based interventions.
Dr. Sohail Agha, PhD. Founder and Director, Behavioral Insights Lab. President, Africa Behavioral Science Network.
Sohail is a public health expert and behavioral scientist with over 25 years of experience designing and evaluating evidence-based interventions across sub-Saharan Africa and South Asia. His work focuses on vaccine demand generation, social norms change, and the application of behavioral science to immunization programs, cold chain performance and HIV prevention. From 2015 to 2022, Sohail served at the Gates Foundation, where he led the integration of social norms, behavior change and digital tools into global health programming. He holds a PhD in Population Dynamics from Johns Hopkins University and a BA in Anthropology from Yale University. He is an Affiliate Professor at the Department of Epidemiology at the University of Washington. Sohail co-founded the Africa Behavioral Science Network in 2025 and has trained 151 practitioners across 25 countries through ABSN’s live online training program. His publication record spans HPV vaccination, behavioral research in Nigeria, Bangladesh, HPV and COVID-19 cost-effectiveness, and implementation science across multiple countries in Africa and Asia.
Dr. Ifeanyi Nsofor, MD. Director of Digital Field Operations, Behavioral Insights Lab. Treasurer, Africa Behavioral Science Network.
Ifeanyi Nsofor is a public health physician and one of Africa’s most recognized voices on health equity and vaccination.
Ifeanyi is a Senior Atlantic Fellow for Health Equity at George Washington University, a Senior New Voices Fellow at the Aspen Institute, and serves on the Global Fellows Advisory Board at the Atlantic Institute, Rhodes Trust. He was named one of the Top 100 Most Influential Africans by New African magazine in 2020. At BiL, Ifeanyi leads digital field operations overseeing data collection, community engagement, and implementation of BiL’s research programs across sub-Saharan Africa.