Ancient DNA Reveals Earliest Known Plague Outbreak in Siberia 5,500 Years Ago

1-Minute Brief

This discovery pushes back the timeline of plague outbreaks and offers new insights into how deadly pathogens emerge and spread.

Key Facts

• Researchers uncovered evidence of a plague outbreak in late Stone Age cemeteries in south-eastern Siberia.
• The outbreak dates back about 5,500 years ago, which is around 200 years earlier than previously documented cases.
• Ancient DNA from human remains indicates the disease affected hunter-gatherer communities and their children.
• Scientists suggest the findings may help understand the emergence of pathogens in the future.
• The bacterium identified was linked to raw marmots, according to the research.

What Happened

Scientists analyzed ancient DNA from Siberian graves and identified the oldest known outbreak of plague, affecting hunter-gatherer populations about 5,500 years ago.

Why It Matters

The findings challenge previous assumptions about the timeline and severity of plague outbreaks, providing new perspectives on the evolution and impact of infectious diseases in human history.

What's Next

Researchers may further investigate how the plague spread among ancient populations and explore implications for modern disease emergence. Additional studies could refine the timeline and origins of the bacterium.