Climate & Environment

Zoonosis

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Definition

A zoonosis is an infectious disease that can be transmitted from animals to humans, such as rabies, Ebola, avian influenza and COVID-19. A majority of emerging infectious diseases are zoonotic, and spillover risk rises with deforestation, land-use change, wildlife trade and intensive livestock production.

References

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This reference provides supporting context for how “Zoonosis” is defined and used.

www.who.intBulk import source

Source imported for editorial provenance.

Overview

How it is used

Health agencies operate zoonotic disease surveillance; pandemic preparedness frameworks integrate land-use and wildlife-risk factors; ESG and biodiversity risk analysis recognises ecosystem disruption as a driver of health risk; the term links conservation directly to public health.

Why it matters

Zoonotic spillover is the most consequential pathway linking environmental degradation to human catastrophe; protecting ecosystems is frontline pandemic prevention.

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Meaning status
Established
Last verification recorded
22 Aug 2026
Last updated
22 Aug 2026
What the classifications mean

Meaning status: Established

EstablishedCurrentMultiple definitionsContestedEmergingIndexed