True about Helicobacter pylori are all except:: (A) Urea, breath test is diagnostic, (B) Gram negative, flagellated bacilli, (C) Risk factor for development of adenocarcinoma of stomach, (D) It provides life-long immunity
Answer is D. Ans. is 'd' i.e., It provides life-long immunity(Ref: Harrison, 17th/e, p. 946, 19th/e, p. 1038; Ananthanarayan, 9th/e, p. 400)Helicobacter pylori infection doesn't provide life-long immunity.