A striking epidemiological reality underscores the urgency of the Quadripartite’s $100 billion One Health commitment: approximately 75% of emerging infectious diseases have zoonotic origins. This statistic, highlighted at the summit, demonstrates why siloed approaches to human and animal health have proven inadequate for modern pandemic prevention.
The four-organization alliance—WHO, WOAH, FAO, and UNEP—is mobilizing resources to strengthen early warning systems for zoonotic disease emergence, recognizing that surveillance gaps at human-animal interfaces represent critical vulnerabilities in global health security. The investment framework emphasizes laboratory capacity and workforce development in regions where emerging diseases are most likely to originate, particularly in low- and middle-income countries. By addressing animal and environmental health monitoring alongside human disease surveillance, the Quadripartite aims to detect and contain zoonotic threats before they escalate into pandemic emergencies.
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