'Zombie viruses': Ancient diseases climate change will bring back - explainer
A look at four "zombie" viruses from ancient times set to come out of the permafrost, and one other hidden disease proven to be deadly for humans.
Bacteria. Ancient diseases, like the bacteria-sized Pandoravirus, could threaten the world after thawing out of permafrost (Illustrative).(photo credit: PIXABAY)ByAARON REICH