The health of humans, animals and environment is vitally interlinked. A majority of emerging and endemic human diseases have their origins in animals, be they transmitted directly, through food or the environment. The World Health Organization (WHO), the World Organisation for Animal Health (WOAH, founded as OIE) and the Food and Agriculture Organization (FAO) of the United Nations are the main international organizations responsible for proposing references and guidance for the public health, agriculture and animal health sectors respectively. WHO, FAO, WOAH has been an active promoter and implementer of an intersectoral collaborative approach between institutions and systems to prevent, detect, and control diseases among animals and humans.