Women planting a young tree, Southeast Asia.
One Health in Southeast Asia.

One Health Offers Multisectoral Approaches in a Changing World

By Isabela Barriga
Global environmental changes such as landscape conversions alter natural systems and can increase contact between humans and other species. Under these conditions, pathogens have more opportunities to move between species and produce outbreaks, highlighting the critical need to consider human health in an increasingly globalized world where diseases know no borders.
“Climate change impacts on ecosystem will continue to affect human health in ways that will be increasingly harder to predict, and in ways that will require multisectoral teams to address,” says Helen Petrozzola, the Institutional Capacity Building Lead of USAID Preparedness & Response.

In the face of these challenges, One Health is an approach to design and implement programs, policies, legislation, and research in which multiple sectors collaborate to achieve better public health outcomes. It recognizes the complex connections among humans, animals, and ecosystems within the systems they operate, and promotes multisectoral collaboration across sectors to address and manage diseases at the human-animal-environmental interface.

A report from the USAID funded-Preparedness and Response project advances progress toward global health security. The findings identify five necessary dimensions for One Health multisectoral coordination:

  • Political commitment: the actions, events, and factors that encourage government and stakeholders to establish and sustain national One Health coordination mechanisms.
  • Institutional structure: the government’s organization of multisectoral coordination mechanisms, including the legal mandate, duties, and obligations, lines of authority, and reporting procedures.
  • Management and coordination capacity: the capacity to assemble partners, meet management and technical standards, and monitor and measure progress toward health security objectives.
  • Joint planning and implementation: the engagement of stakeholders to create national roadmaps, design plans of action, conduct simulations, and manage disease investigations.
  • Technical and financial resources: the identification and mobilization of essential human, technical, and financial resources to operate and strengthen coordination mechanisms.



 The Global Health Security Agenda (GHSA) is strengthening One Health capacity to prevent, detect, and respond to infectious diseases in animals before they become a human public health risk. Similarly to One Health, GHSA uses a multisectoral approach in health sector strengthening.

“Climate change triggers shock and global health security is set up to build resilience within health systems,” says Sarah Paige, Senior Advisor, Global Health Security Agenda. “GHSA is designed to strengthen country capacity to mitigate the health impacts of that shock.”

Climate change is inherently cross-sectoral and presents a major global health opportunity to engage with civil society, governments, the private sector, and the commercial sector to save more human and animal lives. Through multisectoral collaboration, incorporation of One Health approaches to climate adaptation for global health can strengthen health systems and promote resilient communities that support healthy people, and a healthy planet.


Photo: Ecohealth Alliance
Strategic Objective
Adaptation, Integration
Adaptation, Climate Change, Climate Science, Health, Partnership, Resilience, Sustainable Landscapes

Isabela Barriga

Isabela es gerente de redes sociales y coordinadora de contenido para Climatelinks a través del proyecto SEEK de USAID. Ella ayuda con la gestión de la información, la investigación y la redacción de blogs. Anteriormente, Isabela brindó apoyo de comunicación y gestión de contenido a organizaciones intergubernamentales, asociaciones público-privadas y misiones diplomáticas, incluidas las Naciones Unidas, GAVI (actualmente, la Alianza de Vacunas) y la Embajada de Ecuador. Isabela tiene un B.S. en Salud Pública y estudios completos en Desarrollo Internacional y Gestión de Conflictos (Universidad de Maryland, College Park).

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