Multiple choice

Which of the following is the causative agent for gastric and duodenal ulcers?

  1. Yersinia entercolitica

  2. Shigella flexneri

  3. Helicobacter pylori

  4. Campylobacter jejuni

  5. Vibrio parahemolyticus

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

It is a gram-negative, spiral to pleomorphic, prokaryote. H. pylori infection is the main cause of chronic superficial gastritis and it is associated with both gastric and duodenal ulcers.