What is the global prevalence of Helicobacter pylori (Hp) infection?

Updated: Nov 16, 2018
  • Author: Mutaz I Sultan, MBChB, MD; Chief Editor: Carmen Cuffari, MD  more...
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In general, the prevalence is high in developing countries and the infection is acquired at a young age. The incidence is 3-10% of the population each year in developing countries compared with 0.5% in developed countries. [12] The prevalence of H pylori infection is not only lower in industrialized countries than in developing countries, but the incidence of H pylori infection, gastric cancer, and ulcer disease are also declining. Worldwide, more than 1 billion people are estimated to be infected with H pylori. See Age.

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