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.