Difficulty: Medium
Average Score: 78%
Simulated
Which microorganism is most commonly associated with gastritis?
Correct answer
C
Rationale
H. pylori is the most common microorganism associated with gastritis, present in over 80% of cases. While syphilis, cytomegalovirus, and mycobacterium can also cause gastritis, they are much less prevalent compared to H. pylori. Therefore, the correct answer is H. pylori.