Long-dormant bacteria and viruses, trapped in ice and permafrost for centuries, are reviving as Earth's climate warms

bernieforthepeople:

However, what would happen if we were suddenly exposed to deadly bacteria and viruses that have been absent for thousands of years, or that we have never met before?

We may be about to find out. Climate change is melting permafrost soils that have been frozen for thousands of years, and as the soils melt they are releasing ancient viruses and bacteria that, having lain dormant, are springing back to life.