The bacterium that causes stomach ulcers and deadly gastric cancer, Helicobacter pylori, is disappearing in many developed countries. Many physicians see this as cause for celebration. But at least one researcher thinks the bacterium is more than just a pathogen. Cassandra Willyard investigates whether H. pylori may be preventing diseases as well as causing them.
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Willyard, C. A tough controversy to stomach. Nat Med 15, 836–839 (2009). https://doi.org/10.1038/nm0809-836
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DOI: https://doi.org/10.1038/nm0809-836
