Plague was wiping out prehistoric hunter-gatherers 5,500 years ago—revealing the infamous disease was deadly thousands of years earlier than anyone realized. Credit: Shutterstock For many people, plague brings to mind rats, crowded medieval towns, and the devastating epidemics that spread across Europe during and after the Middle Ages. New research suggests the disease's deadly history stretches back much further. A study published in Nature found that plague was already killing people 5,500

Tag-uri: DNA