Climate change will accelerate viral spillovers, study finds

The shuffling of viruses among animals may increase the risk that one will jump into humans and cause a new pandemic, the researchers said.

To understand what that sharing will look like, Dr Carlson and his colleagues built a computer model of potential spillovers in a warming world. To understand the odds of a successful new infection, the researchers began by building a database of viruses and their mammalian hosts. That's because the hosts were more likely to encounter each other, giving their viruses more opportunities to move between them.

The researchers were not able to say exactly which viruses would move between which species. What matters, they argued, is the sheer scale of what's to come.

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