Perspective: The one-health way

Some of the greatest advances in medicine and public health, such as vaccinations, sanitation and food safety, have been made at the human–animal–environment interface. We should revive this holistic approach to global health and take advantage of the fact that animals develop many of the same diseases as we do. The key idea is called 'one health': the concept that the well-being of humans, animals and the environment are linked. Applications of the one-health perspective abound. The four I discuss demonstrate the power of this framework.