For TB Clues, Researchers Turn to Bones

Scientists are analyzing bones found in the ancient city of Jericho, in what's now the West Bank, for clues to fighting tuberculosis. The German, Israeli, and Palestinian researchers hope the 6,000-year-old DNA they're studying will reveal how the disease evolves and how to combat it.

"We see a re-emerging wave of tuberculosis all over the world and ... perhaps learning from the past will help us understand the present," said a German professor. TB is believed to have originated in the Middle East 10,000 years ago. Evidence from the bones, unearthed 50 years ago, indicates that the infection was widespread. (More TB stories.)