Wildlife Trade Is Accelerating Zoonotic Disease Outbreaks Worldwide, Study Warns

A sweeping new study has found that the global wildlife trade is significantly increasing the risk of animal-to-human disease transmission, with researchers warning that the multibillion-dollar industry poses a mounting threat to public health worldwide.

The study, which examined the intersection of exotic pet markets, trophy hunting, and the use of animal-derived materials in fashion and luxury goods, concludes that each sector creates distinct but overlapping pathways for pathogens to jump from wildlife to humans.

Researchers identified close human contact with wild animals as the primary driver of so-called zoonotic spillover events, pointing to handling, transport, and slaughter practices as critical moments when viruses, bacteria, and parasites can cross species barriers. Animals under the stress of captivity or transit are also more likely to shed pathogens at higher rates, the study noted.

The exotic pet trade alone moves tens of millions of live animals across international borders each year, often with limited veterinary screening. Primates, reptiles, and birds were highlighted as species of particular concern due to their known capacity to carry diseases transmissible to humans.

Trophy hunting operations and the harvesting of animal skins, bones, and other materials for the fashion industry were also flagged as underexamined vectors. Workers in these supply chains frequently lack protective equipment and adequate biosurveillance, creating silent transmission corridors that rarely make headlines until an outbreak emerges.

The authors argue that regulatory frameworks governing the wildlife trade have not kept pace with the industry's growth, and call for stronger international cooperation, mandatory health screening protocols, and greater transparency in supply chains. They also urge governments to close loopholes that allow high-risk species to be traded legally with minimal oversight.

Public health experts not involved in the study say the findings reinforce lessons that should have been learned from outbreaks like SARS, Ebola, and COVID-19, all of which have been linked to human-wildlife interfaces. The research adds to a growing body of evidence that treating wildlife trafficking as a public health issue, not just an environmental one, could be key to preventing the next pandemic.