Diversitatea speciilor de H.pylori și implicarea acestora în patologia digestivă | [Species diversity and involvement of Helicobacter pylori in digestive pathology]

Abstract

The incidence of Helicobacter pylori infection is between 3-10% of the population per year in developing countries and 0.5% per year in developed countries. There are significant correlations between the prevalence of H. pylori infection, hygiene, and living conditions in childhood. The natural reservoir of H. pylori infection is human, which describes many possible routes of transmission: oral-oral, fecal-oral, gastro-oral, iatrogenic, aquatic, and zoonotic Based on genetic differences, H. pylori have been classified into seven varieties, with different geographical distribution, prevalence specific ethnic groups. The suggested origin of H. pylori infection is in East Africa, where it spread ago a hundred thousand years The first form of the disease, which manifests itself in all patients infected with H. pylori is active chronic gastritis. Later complications occur or developments such as chronic gastritis to ulcer disease and gastric cancer species.