Which pair won the 2005 Nobel Prize for showing that a bacterium causes stomach ulcers?
Answer and explanation
Correct answer: B. Barry Marshall and Robin Warren, from Western Australia
- Step 1: The bacterium is Helicobacter pylori. Answer: Marshall and Warren. Why not the others: Florey and Chain worked on penicillin, Doherty and Zinkernagel on immunity, and Wood and Clark are not Nobel winners.
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