One Health

© FAO Simon Maina

Zoonoses

Zoonotic diseases, or zoonoses, are diseases shared between animals – including livestock, wildlife, and pets – and people. They can pose serious risks to both animal and human health and may have far-reaching impacts on economies and livelihoods. Zoonotic diseases are commonly spread at the human-animal-environment interface – where people and animals interact with each other in their shared environment. Zoonotic diseases can be foodborne, waterborne, or vector-borne, or transmitted through direct contact with animals, or indirectly by fomites or environmental contamination. Examples include, Rift Valley Fever, MERS-CoV, and some strains of Avian Influenza. 

One Health approach

Health issues at the human-animal-environment interface cannot be effectively addressed by one sector alone. Collaboration across all sectors and disciplines responsible for health is required to address zoonotic diseases and other shared health threats at the human-animal-environment interface. This approach to collaboration is referred to as One Health.

⦿ A zoonosis is any disease or infection that is naturally transmissible from vertebrate animals to humans.

⦿ 60 percent of all human infectious diseases are zoonotic in origin and some 75 percent jump species.

⦿ There are over 200 known types of zoonoses.

Contact: 
Zelalem Tadesse

Senior animal health officer (zoonoses and One Health) 

Zoonoses-Coordination@fao.org

Highlights
Highlights
Breaking down silos: Why the One Health approach is our best defence against future pandemics

When health systems work in silos, they are fighting a multi-front war with limited visibility. Diseases do not respect institutional boundaries, so neither should our responses.

Highlights
Preventing the next pandemic

The emergence and global spread of COVID-19, Avian Flu and other zoonotic diseases cast a spotlight on the interconnectedness of human, animal, and environmental health. 

In depth
One Health approach to rabies

FAO supports member countries in their efforts to prevent and control rabies through a One Health approach.

In depth
Ebola virus disease

Ebola virus disease is a severe and often fatal zoonotic disease that occurs primarily in tropical regions of sub-Saharan Africa and is transmitted to humans through contact with infected wildlife or direct contact with the blood or bodily fluids of infected people.

Highlights
World Zoonoses Day
06/07/2026

World Zoonoses Day commemorates the first successful rabies vaccination by Louis Pasteur in 1885 and raises awareness about zoonotic diseases. 

Highlights
Ebola virus disease - Frequently asked questions
12/06/2026

Ebola virus disease is a severe, often fatal human illness caused by infection with viruses of the genus

Bhutan-PF-1
Highlights
Watching the wild: How Bhutan is building the next line of defence against pandemics
11/06/2026

Bhutan, where livestock graze near national parks and forest officials work alongside tigers and elephants, new zoonotic diseases are not an abstract...

date-sap
Highlights
Date palm sap collection and Nipah virus risk: Honouring Indigenous Peoples’ food and knowledge
08/06/2026

Date palm sap collection is a seasonal tradition for Indigenous Peoples across eastern and central India and in Bangladesh.

Publications
Mpox case detection in animals: A guide to epidemiological and laboratory investigations
10/2025

This FAO guide was developed as a practical tool for the epidemiological and laboratory investigation of mpox cases in animals. It is intended for use...

Evaluation of FAO’s support to the Global Health Security Agenda to address Zoonotic Disease and Animal Health in Africa and Asia
08/2025

This evaluation identifies lessons learned and good practices from FAO’s implementation of the Global Health Security Agenda (GHSA-FAO), an eight-year...

One Health cost–benefit analysis of control policies for the prevention of livestock brucellosis in Georgia
02/2025

An economic analysis was performed to assess the cost of brucellosis to households, to the public, and to livestock production.