Environment: the neglected component of the One Health triad

The One Health approach was conceptualised as a global public health strategy that encourages interdisciplinary collaboration and communication on health at the human-animal-environmental interface.1 It is defined by the American Veterinary Medical Association as “the collaborative effort of multiple disciplines—working locally, nationally and globally—to attain optimal health of people, animals, and our environment”.2 The One Health Approach gained popularity in response to zoonotic public health emergencies such as the outbreaks of severe acute respiratory syndrome, Middle East respiratory syndrome, H1N1 influenza, Ebola, and Zika.