Lyme Disease Bacteria Found in Ancient Amber

Lyme disease - a painful, debilitating disease spread by ticks - was identified only about 40 years ago. But researchers say the bacteria that causes it dates back to the age of the dinosaurs... and those ancient roots may have made it difficult to treat. The bacterium that causes Lyme disease was present at least 15 million years ago, some 12 million years earlier than the appearance of modern humans.   Researchers at Oregon State University discovered a diseased tick in ancient...

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