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A cautionary tale

In 1981, a young Australian doctor named Barry Marshall used a microscope to detect Helicobacter pylori in stomach biopsies of gastric ulcer patients. We now know that this bacterium causes most stomach ulcers, and a simple round of antibiotics cures patients—at the time medicine was oblivious to this fact. Two very well written accounts of this story can be found here and here, including such gems as: “Guinea-pig doctor discovers new cure for ulcers” “They were talking about