ICBAS - Instituto de Ciências Biomédicas Abel Salazar

One Health

One Health in a minute

One Health is an approach that recognizes the connection between people, animals, plants, and the environment to achieve more and better results in health.

It is holistic, collaborative, multisectoral, and transdisciplinary.

Human health does not just depend on us, it is deeply linked to all living beings, from microorganisms to large animals, and the environment. These continuously interact in search of a steady state.

The unsustainable treatment of natural resources and globalization induce environmental imbalances that affect the health of all living beings.

One Health People City

Why One Health? To prevent and respond to the challenges of the 21st century

The One Health approach aims to prevent, detect, contain, eliminate, and respond to public health threats caused by agents and events that are dangerous to human and animal health such as zoonoses (infectious diseases transmitted from animals to humans), antimicrobial resistance, climate change, reduction of forests, among others.

The One Health concept contributes to a scientific, technical, and adaptive response to these complex problems. Thus, it is urgent to promote and intensify the articulation and collaboration between experts and organizations in the various areas of knowledge: medical, veterinary, and environmental.

One Health approach

What are the specific goals of One Health?

Prevenir e controlar o surgimento e ressurgimento de doenças zoonóticasTo prevent and control the emergence and re-emergence of zoonotic diseases. Zoonotic diseases are infectious diseases caused by viruses, bacteria, parasites, or fungi, capable of being naturally transmitted between animals and humans. Some examples of this type of diseases are toxoplasmosis, brucellosis, and the well-known COVID-19;

Prevenir e controlar a propagação de doenças transmitidas por vetores. To prevent and control the spread of vector-borne diseases. Vectors are vehicles for the transmission of the causative agent of a disease. Mosquitoes, ticks, and snails can act as vectors. Examples of vector-borne diseases include malaria, dengue, Chagas disease, and bilharzia;

Promoção do correto uso dos antibióticos To promote the correct use of antibiotics and to create new antibiotics to fight antimicrobial resistance;

Promoção e conservação da segurança alimentarTo promote and to conservate food safety, by protecting food from biological (infectious agents), physical (foreign bodies such as metal, plastic, or stones), and chemical (heavy metals, insecticides, among others) hazards;

Remediação da poluição To reduce atmospheric, soil, water, visual and noise environmental pollution;

Prevenir o desenvolvimento de doenças crónicas e doenças não transmissíveisTo prevent the development of chronic diseases and non-communicable diseases such as cardiovascular disease, diabetes, or cancer;

Promoção da saúde mental e do bem-estarTo promote mental health and well-being, through, for example, reducing tobacco consumption, increasing physical exercise, or eating a balanced diet.

One Health Ocean

What is the origin of One Health?

The Manhattan (2004) and Berlim (2019). Os Princípios de Berlim, lançados na Conferência “One Planet, One Health, One Future”, atualizam os de Manhattan e reintegram os conceitos de integridade dos ecossistemas, o combate às alterações climáticas e às resistências antimicrobianas.

The Organização Mundial de Saúde (OMS) tem vindo a chamar a atenção para estes aspetos, nomeadamente para a garantia da segurança alimentar, combate a zoonoses e resistência a antibióticos, tal como a Organização das Nações Unidas para a Alimentação e a Agricultura (FAO), através do programa “One Water, One Health” program.


The The collaboration agreement between FAO, World Organization for Animal Health (OIE) and WHO, performed in 2010, marked a turning point in the global realization of the One Health concept. marcou um ponto de viragem decisivo na concretização global dos conceitos Uma Saúde.


Awareness of this new approach led to the creation of several organizations, culminating, in 2016, with the fusion of three structures (One Health Commission, One Health Platform and One Health Initiative Team), which gave rise to the One Health Initiative. On November 3, 2016, the first One Health Day was celebrated One Health Initiative. No dia 3 de novembro de 2016 foi celebrado o primeiro One Health Day.

One Health wildlife

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