Question
Which bacteria was discovered by Barry Marshall and
Robin Warren that colonises the human stomach and causes chronic superficial gastritis ulcers?Solution
Barry Marshall and Robin Warren discovered the bacterium Helicobacter pylori. Their discovery revolutionized the understanding of peptic ulcer disease and gastritis. Initially, their hypothesis that bacteria could cause gastritis and peptic ulcers faced skepticism, but subsequent research confirmed the role of H. pylori in these conditions.
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