30,000-year-old virus from permafrost is reborn
Published on Mar 4, 2014 6:07 AM
PARIS (AFP) - French scientists said on Monday they had revived a giant but harmless virus that had been locked in the Siberian permafrost for more than 30,000 years.
Wakening the long-dormant virus serves as a warning that unknown pathogens entombed in frozen soil may be roused by global warming, they said.
Dubbed Pithovirus sibericum, the virus was found in a 30-metre (98-foot) -deep sample of permanently frozen soil taken from coastal tundra in Chukotka, near the East Siberia Sea, where the average annual temperature is minus 13.4 degrees Celsius.
The team thawed the virus and watched it replicate in a culture in a petri dish, where it infected a simple single-cell organism called an amoeba.
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