The World Health Organization (WHO) will convene a number of key side events during the One Health Festival, held alongside the One Health Summit in Lyon, France, and will further contribute as a partner to a number of additional events.
These events will bring together policymakers, scientists, researchers and practitioners from across sectors to highlight the critical links between human, animal and ecosystem health, and to showcase practical solutions for addressing shared challenges such as climate change, emerging diseases and antimicrobial resistance. Through these discussions, WHO aims to promote integrated, science-based approaches and strengthen collaboration to advance the One Health agenda globally.
WHO side events
One Health approaches to prevent urban yellow fever spillover and spread
30 March 2026 | 15:00 CET | Online
A One Health–driven assessment of primate vaccination as an innovative emerging tool to curb urban yellow fever spillover, examining its scientific rationale, operational feasibility, and potential to strengthen prevention in rapidly evolving urban environments.
More information and registration.
One Health lessons on arboviruses for stronger preparedness in LMICs
31 March 2026 | 15:00 CET | Online
Integrating human, animal, and environmental expertise to better anticipate, prevent, and respond to zoonotic arbovirus threats in LMICs.
More information and registration.
Strengthening One Health through joined forces of the Quadripartite for Europe and Central Asia (ROHCM)
Date: 1 April 2026 | 10:00 CET | Online
This 60-minute webinar is organized by the Regional One Health Coordination Mechanism for Europe and Central Asia (ROHCM), which brings together the Food and Agriculture Organization (FAO), UN Environment Programme (UNEP), WHO/Europe, and the World Organisation for Animal Health (WOAH). The event will highlight how these four organizations have joined forces, aligning expertise to address complex health challenges at the human–animal–environment interface.
Film screening and discussion on education for a balance between animal, plant and human health
6 April 2026 | 11:30-12:30 CET | Lyon, France (in-person)
This free session invites Summit participants and members of the local community to explore how different countries are developing educational strategies related to One Health. The screening highlights initiatives designed for young people and professionals across sectors connected to the Summit’s themes, offering insight into the challenges and opportunities of building awareness and expertise worldwide. Following the screening, panellists with complementary expertise will lead an interactive discussion and invite questions from the audience. Together, participants will explore how storytelling can help communicate the complex links between human health, animals and the natural environment.
More information and registration.
Together for One Health at the Local Level
6 April 2026 | 14:00-17:30 CET | Lyon, France (in-person)
This event brings together a diverse group of partners driven by a shared ambition: to advance the One Health approach at both local and global levels. At a time when interconnected health challenges call for collective action, the World Health Organization (WHO) provides strategic leadership, technical expertise and global convening power. The WHO Academy adds momentum through its work in lifelong learning, innovation and capacity-building. The cities of Lyon and Marseille, alongside the French WHO Healthy Cities Network, the Groupe Santé-Environnement and the Association des ÉcoMaires, help turn this shared vision into concrete action for healthier, more sustainable communities.
From Rabies to Readiness: Community Surveillance for One Health
7 April 2026 | 12:30-13:30 CET | In person : Marriot cité Internationale
Rabies is one of the clearest, most solvable One Health challenges. It is invariably fatal once symptoms appear, yet entirely preventable. Over 99% of human rabies deaths result from dog bites, and more than 40% of victims are children. Countries that have made sustained progress towards elimination have done so by strengthening community-level surveillance: enabling rapid reporting of bites, timely referral for post-exposure prophylaxis, strategic dog vaccination and real-time data sharing between human and animal health systems. This community interface is what operationalises One Health in practice. Participants will discuss how to collaborate to eliminate all human deaths from dog-mediated rabies.
More information and registration (by sending an email to iabs@iabs.org.)
Advancing One Health Learning: mapping, connecting, building
9 April 2026 | 09:00–12:00 CET | Hybrid (online and in-person, Lyon, France)
The meeting will provide a platform to share experiences, align priorities and explore collaborative approaches to advancing effective One Health learning initiatives globally. The session will feature an exchange of innovative practices in One Health education and training, alongside a collaborative mapping of existing initiatives and partnerships. Participants will identify key challenges and opportunities in advancing One Health learning, engage in interactive discussions on scaling impactful training approaches and explore potential collaborations and future learning networks.
Climate-resilient and low-carbon health systems as a practical One Health solution
9 April 2026 | 11:00–13:00 CET | Hybrid (online and in-person, Lyon, France)
This event will explore how climate-resilient and low-carbon health systems can serve as a practical entry point for advancing a One Health approach in the context of climate change. Co-hosted by WHO and the French Ministry of Health, it will bring together policymakers, practitioners and researchers to discuss climate-informed surveillance, resilient health services, and cross-sector collaboration. The discussion will draw on country experiences and initiatives such as ATACH to identify opportunities for financing and accelerating integrated climate and health action.
More information and registration.
Ultra‑processed foods: a One Health agenda for action and accountability
10 April 2026 | 13:00–14:30 CET | Online
This side event will examine the growing role of ultra-processed foods within modern food systems and explore how these products intersect with interconnected risks across human health, animal health and environmental sustainability.
More information and registration.
------------- More details will follow shortly for the following events -------------
Operationalizing One Health: from IHR Amendments to the Pandemic Agreement (Webinar series)
29-30 April 2026 | Time: TBC | Online and two live
Serious Interactive Game on Prevention and Response to a Mosquito-Borne Zoonotic Disease in an Urban Setting
9 May 2026 |90 min | In-person: Université de Liège
WHO Partner events
Early career advice for One Health governance and beyond
26 March, 16 April and 21 May 2026 | 13:00 CET | Online
This three-part series offers a relaxed and interactive space to connect directly with experienced One Health practitioners, hear their personal journeys, and ask your questions in an open dialogue setting.