Franken-virus! Giant Virus Resurrected From Permafrost After 30,000 Years

Researchers revived a giant virus that had been buried in Siberian permafrost for 30,000 years, NBC News reported. Although the virus only infects single-celled organisms and can't harm humans, its resurrection raises concerns that harmful viruses could be brought back to life. There's a chance that warming from climate change could melt the ice where old Neanderthal viruses — or even smallpox viruses — have been dormant for thousands of years. Some viruses have been extinct so long that human immune systems are no longer prepared to fight them.

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