The Institute for Infectious Animal Diseases (IIAD) Externship Program provides an immersive and high-impact educational experience for veterinary and public health students dedicated to advancing their expertise in transboundary and zoonotic animal diseases. Rooted in the One Health framework, the program fosters a comprehensive understanding of the interconnectedness between animal, human, and environmental health systems. Through this integrated approach, participants gain critical insight into the mechanisms of global disease prevention, preparedness, and response, equipping them to contribute meaningfully to the protection of animal and public health worldwide.