30,000-year-old giant virus 'comes back to life'
The virus was inactive for more than 30,000 years until it was revived in a laboratory in France
An ancient virus has "come back to life" after lying dormant for at least 30,000 years, scientists say.
It was found frozen in a deep layer of the Siberian permafrost, but after it thawed it became infectious once again.
The French scientists say the contagion poses no danger to humans or animals, but other viruses could be unleashed as the ground becomes exposed.
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