How Prevalent is the infection of H. pylori in Humans?
The prevalence of H. pylori infection in humans correlates with socioeconomic status and age. Low socioeconomic status predisposes to infection. Infection is common in children’s and adults of developing countries. In developed countries, the proportion of people infected with H. pylori has fallen, and gastric and duodenal ulcers and stomach cancer have become less common.
