Question

The $2005$ Nobel Prize in Physiology/Medicine was awarded to Barry Marshall and Robin Warren of Australia for their discovery of

• A. Human papilloma virus causing cervical cancer.
• B. Bacterium Helicobactor pylori causing peptic ulcer.
• C. Prions, a new biological principle of infection.
• D. Human immunodeficiency virus.

Answer 1

The correct option is B Bacterium Helicobactor pylori causing peptic ulcer.

In 2005, Barry Marshall and Robin Warren of Australia won the Nobel Prize in Physiology/Medicine for their discovery of Helicobacter pylori. Helicobacter pylori is a Gram-negative bacterium that lives in the stomach of humans. This bacterium causes infection such as ulcers in the cells of the stomach and intestinal tract on excessive growth. The ulcers formed in the stomach are called peptic ulcers. Thus the correct answer is option B.