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Iceman harbored ulcer-causing bugs: H. pylori DNA from mummy may offer clues to human migration.
Otzi the Iceman had a stomach bug.
The 5,300-year-old mummy holds DNA evidence of Helicobacter pylori, a common stomach-dwelling bacterium that can cause ulcers and other ailments, researchers report in the Jan. 8 Science.
The work could rewrite the timeline of H. pylori evolution, and possibly even offer some insight into human migration--though not everyone is convinced.
Regardless, it's the first time anyone has stitched together the pieces of ancient H. pylori DNA, says...
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