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Peptic ulcers are caused by –

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Peptic ulcers are caused by – 

 (A) a fungus, Candida albicans 

(B) a virus, cytomegalovirus 

(C) a parasite, Trypanosoma brucei 

(D) a bacterium, Helicobacter pylori 

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Correct :-(D) a bacterium, Helicobacter pylori

Explanation :-

Peptic ulcer is mucosal erosion equal to or greater than 0.5 cm of GIT. 70 - 90% of peptic ulcer are associated with helicobacter pylori spiral shaped bacterium that lives in the acidic environment of stomach.

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