Explore mathematical models used to understand drivers of pathogen prevalence in this comprehensive lecture from the "Emerging Infectious Diseases: Ecology and Evolution" program. Delve into the application of theoretical frameworks to analyze factors influencing disease dynamics and distribution in animal populations. Learn how these models integrate concepts from ecology, evolution, and mathematics to provide insights into the complex interactions between pathogens, hosts, and their environment. Gain valuable knowledge on how such models can be used to predict and manage disease outbreaks, contributing to public health strategies and ecosystem management. Presented by Ashwin Viswanathan from the International Centre for Theoretical Sciences, this 1 hour and 37 minute talk is part of a broader course examining the intersection of biodiversity changes, human health, and emerging infections in our rapidly changing world.