We work on the links between human behavior and human health with a focus on movement, access to health care, and the transmission and prevention of infectious diseases. Understanding the causal interactions that lead to disease allows us to develop interventions that directly target important underlying mechanistic processes. This approach has a powerful positive impact on the reduction and prevention of infectious diseases. Our work also provides important insights into the inequities that give rise to negative health outcomes. Nearly a decade ago, we developed the first direct application of satellite imagery towards mechanistic understanding of human infectious disease transmission, which we used to advance vaccination strategies. Since then, the field has grown and we’ve continued to push the pursuit of methods and applications forward.