Jurassic Park's Prequel: Siberian Edition

"A mysterious giant virus buried for 30,000 years in Siberian permafrost has been resurrected. The virus only infects single-celled organisms and doesn't closely resemble any known pathogens that harm humans. Even so, the new discovery raises the possibility that as the climate warms and exploration expands in long-untouched regions of Siberia, humans could release ancient or eradicated viruses."