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Wildlife Trade Increases Pathogen Transmission: What 40 Years of Data Say About Spillover

Researchers found traded mammals were 1.5 times more likely to carry zoonotic diseases, and each 10 years in trade added another shared pathogen.

Summary by Phys.org
Hedgehogs, elephants, pangolins, bears or fennec foxes: many wild species are sold as pets, hunting trophies, for traditional medicine, biomedical research, or for their meat or fur. These practices, whether legal or illegal, concern one-quarter of all mammal species. Now a study conducted at the Department of Ecology and Evolution of the University of Lausanne (Unil) quantifies the impact of wildlife trade on the exchange of germs and parasites…

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The wildlife trade increases the risk of pandemics in humans, according to an international study that warns of the key role of this activity in the transmission of viruses, bacteria and parasites between species. The research, published in Science and based on four decades of global data, concludes that marketed mammals are up to 1.5 times more likely to transmit pathogens to humans than those that do not participate in these markets. This phen…

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Scientific American broke the news in on Thursday, April 9, 2026.
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