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Abstract
it has well demonstrated that the prevalence of H pylori strongly varies between developing and developed countries , where prevalence among adults is typically around 80% , 90% and 40% respectively . Furthermore, modes and risk factors of transmission, as well as re infection rates are likely to vary between developing and developed countries (Rothenbacher et al., 2003)
Prevalence of H pylori varies by geographic location, ethnic background, socioeconomic status and age. Recent studies show that H pylori prevalence declining in developed countries and those with rapid socioeconomic improvement (Go, 2002).
The clinical course of H pylori infection is highly variable and is influenced by both microbial and host factors. The course may start with gastritis with the risk of clinical squeals, namely duodenal or gastric ulcers, mucosal atrophy, gastric carcinoma or gastric lymphoma (Dixon, 2001)
In this study we were trying to detect the prevalence of H pylori in different types of gastro duodenal lesions