Global
One Health
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The “One Health” concept is founded on an awareness of the major opportunities that exist to protect public health through policies aimed at preventing and controlling pathogens at the level of animal populations and at the interface between humans, animals and the environment.
The World Organisation for Animal Health (WOAH, founded as OIE) envisages and implements the “One Health” concept as a worldwide collaborative approach to understand risks to human, animal and environmental health as a whole.
Putting the “One Health” vision into practice has been facilitated by a formal alliance among the World Health Organization (WHO), the Food and Agriculture Organization of the United Nations (FAO) and WOAH (the “Tripartite”). In early 2022, the United Nations Environment Programme (UNEP), also formally joined the group after being active in Tripartite work, forming the “Quadripartite”. Rabies, zoonotic influenza viruses (those causing certain types of avian influenza, for instance) and antimicrobial resistance (AMR) have been selected as priorities.
In October 2022, a new One Health Joint Plan of Action was launched by the Quadripartite, creating a framework to integrate systems and capacity to collectively better prevent, predict, detect, and respond to health threats. Ultimately, the initiative seeks to improve the health of humans, animals, plants, and the environment, while contributing to sustainable development.
The organisations then reaffirmed an unwavering commitment to One Health at the Third Quadipartite Executive Annual Meeting of March 2025, issuing a unified call for urgent, strategic, and sustained support and investments to scale up One Health implementation worldwide.
On 3 November each year, the global community celebrates One Health Day, an international campaign that promotes collaboration across the human, animal, and environmental sectors to address complex health challenges. Established in 2016, One Health Day provides an opportunity for governments, international organisations, academia, civil society and communities to showcase how the One Health approach is being translated into action around the world.
Learn about our activities in observance of One Health Day this year: One Health Day 2026 – WOAH – Asia
In the Asia Pacific region, WOAH is implementing various activities under the One Health concept and supporting its Member countries in collaboration with the partner organizations, in particular as the Asia-Pacific Quadripartite (FAO, WHO, WOAH, UNEP).
