Event World Day
One Health Day 2026
While not an official UN observance, 3 November is celebrated by many as One Health Day. The global campaign is co-coordinated by the One Health Commission, the One Health Initiative Autonomous pro bono Team and the One Health Platform Foundation with the aim of bringing global attention to the need for One Health collaborations.
About One Health Day
While not an official UN observance, 3 November is celebrated by many as One Health Day. The global campaign is co-coordinated by the One Health Commission, the One Health Initiative Autonomous pro bono Team and the One Health Platform Foundation with the aim of bringing global attention to the need for One Health collaborations.
About One Health
One Health is an approach in which multiple sectors work together to achieve better public health outcomes (WHO, 2017). It is rooted in the recognition that human health and animal health are interdependent and bound to the health of the ecosystems in which they exist (WOAH, n.d.). The complex nature of the interactions between people, animals and plants renders this collaborative, multisectoral and transdisciplinary approach critical to addressing future health risks and challenges.
The One Health High Level Expert Panel (OHHLE) – the advisory panel convened by World Health Organization (WHO), Food and Agriculture Organization (FAO), World Organization for Animal Health (WOAH, formely known as OIE) and United Nations Environment Programme (UNEP) – has recently elaborated a new operational definition of One Health.
One Health is an integrated, unifying approach that aims to sustainably balance and optimize the health of people, animals and ecosystems. It recognizes the health of humans, domestic and wild animals, plants, and the wider environment (including ecosystems) are closely linked and inter-dependent.
The approach mobilizes multiple sectors, disciplines and communities at varying levels of society to work together to foster well-being and tackle threats to health and ecosystems, while addressing the collective need for clean water, energy and air, safe and nutritious food, taking action on climate change, and contributing to sustainable development.
Events
One Health Week | One Health in Practice: Connecting Research, Innovation and Implementation
2 November 2026 | 10:00 – 11:30 CET
Organized by the World Health Organization
Launch of the open access Quadripartite course: Evaluating the value of One Health
3 November 2026 | 13:00–14:00 CET
Organized by FAO, UNEP, WHO, WOAH
One Health Week | Before the Crisis: WHO Advancing Prevention through a One Health Approach
3 November 2026 | 14:00 – 15:30 CET
Organized by the World Health Organization
Quadripartite Webinar – Operationalizing One Health: Translating Enablers, Dismantling Barriers and Aligning Global Policy
5 November 2026 | 14:00 – 15:30 CET
Organized by the United Nations Environment Programme, Food and Agriculture Organization of the United Nations, World Health Organization, World Organization for Animal Health
Geneva Health Forum Conference | Cities matter in One Health: From Lyon to Geneva
11 November 2026 | 16:00 – 17:30 CET
Organized by Geneva Health Forum