Some scientists are warning of the potential for “Arctic zombie viruses” in Siberia, according to reports.

The claim is that as climate change causes the Arctic permafrost to thaw, it will release ancient viruses that could put people at risk of disease.

National Geographic defines “permafrost” as “a permanently frozen layer below Earth’s surface [that] consists of soil, gravel and sand, usually bound together by ice.”

“They would likely have to go through many changes to adapt to or spread among modern hosts,” he told Fox News Digital.

“Much more concerning is the close contact with animals and humans in Asia, which can and does lead to zoonotic spillover to humans,” said Siegel.

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Melissa Rudy is the health editor and a member of the lifestyle team at Fox News Digital. Story tips can be sent to [email protected]