With rapid transportation of people, animals, and food, now the norm in many world economies, we are facing new complex zoonotic diseases and food safety problems on a scale never seen before. To respond to and control these problems, we will need new approaches. One Health, an interdisciplinary approach that encompasses animal, human, and environmental health, has been embraced as a way forward by many groups of professional experts. It is a worldwide strategy for advancing health care in humans, animals and the environment through communication and collaboration between multiple disciplines with the realization that human, animal, and environmental health are all connected.