One Health is a collaborative, multidisciplinary, and multisectoral approach that can be used to address health threats at the human-animal-environment interface. The World Organisation for Animal Health (WOAH, founded as OIE) supports its Members to establish a multisectoral, One Health coordination mechanism (MCM) for zoonotic diseases in collaboration with partner organisations, the Food and Agriculture Organization of the United Nations (FAO), the World Health Organization (WHO), and the United Nations Environment Programme (UNEP).
In this regard, FAO, WHO and WOAH, then commonly called the “Tripartite”, established a coordination mechanism in 2010 through the release of “A Tripartite Concept Note”. This partnership was envisaged to foster a better coordination mechanism amongst the three organizations to consolidate fragmented efforts at global, regional, national and sub-national levels to effectively address health risks at the human-animal environment interface. The Tripartite partnership was reaffirmed in 2018, when the Director Generals of the three organisations signed a Memorandum of Understanding to strengthen their long-standing partnership to address antimicrobial resistance (AMR), emerging and endemic zoonotic diseases (including food borne diseases) and with an emphasis on strengthening health systems. The Tripartite published several documents (frameworks, guidelines, etc.) for countries to strengthen their multisectoral coordination mechanisms and to address health risks using the One Health approach.
In March 2022, the Tripartite formally became a “Quadripartite” when UNEP joined the group of organisations via a Memorandum of Understanding, strengthening the partnership. The Asia Pacific Quadripartite works under the One Health umbrella in fighting health risks at the human-animal-environment interface, focusing in particular on AMR, rabies and zoonotic influenza (such as avian influenza), through promoting cross-sectoral collaboration.
The Asia Pacific Quadripartite comprises the regional offices of the four international organisations which work jointly to promote cross-sectoral collaboration. These partners have strengthened multisectoral collaboration in the region through jointly organising regular regional workshops since 2010, first as a Tripartite and now in its current form as a Quadripartite.