One Health Case Studies: A Resource for Parties to the Convention on Migratory Species

One Health is now a widely used term and is defined by the One Health High-Level Expert Panel (OHHLEP) – an advisory group for the Quadripartite organisations (the Food and Agriculture Organization of the United Nations (FAO), the United Nations Environment Programme (UNEP), the World Health Organization (WHO) and the World Organization for Animal Health (WOAH)) – as ‘an integrated, unifying approach that aims to sustainably balance and optimize the health of people, animals and ecosystems. One Health recognizes the health of humans, domestic and wild animals, plants, and the wider environment (including ecosystems) are closely linked and inter-dependent’ (WHOa).

One Health is of great relevance to the Convention on the Conservation of Migratory Species of Wild Animals (CMS), not least as One Health approaches are recommended in CMS Resolution 12.6 (Rev. COP14) Wildlife Health and Migratory Species (UNEP/CMS, 2024a). The purpose of this report is to explore tangible One Health case studies to help demonstrate to CMS Parties how a One Health approach can be used to meet shared objectives, while highlighting key principles for its practical implementation.