Globalisation and climate change, unregulated trade, unsustainable agricultural practices, our consumption patterns… all facilitate the emergence and spread of diseases between wild animals, domestic animals and humans, endangering the health of all. In 2020, the COVID-19 pandemic brutally brought the intrinsic link between animal, human and environmental health to everyone’s attention. The World Organisation for Animal Health (OIE) works to break disease transmission cycles by collaborating with partners, experts and donors and by supporting countries.