Helicobacter pylori

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An S-shaped Gram-negative bacterium (0.5–0.9 × 3.0 μm) that infects the stomach and is a major factor predisposing to gastric and probably duodenal ulcers, although infection in most people is asymptomatic. Can be treated with antibiotics, but resistant strains are developing.

Subjects: Science and Mathematics — Medicine and Health.

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