[The relationship of duodenal peptic ulcer and gastroduodenitis to a chronic staphylococcal infection].

Tonsillar and pharyngeal smears revealed growth of pathogenic microorganisms, mainly of Staphylococcus aureus, in 58.0 +/- 3.7% of 174 patients with duodenal ulcer and gastroduodenitis during remission or unstable remission, in 40.0 +/- 5.3% of 85 patients with other gastroenterological diseases and in 17.5 +/- 6.0% of 40 subjects constituting control group. Urease activity ratio (biological marker of Helicobacter pylori) was found to be approximately the same in every group of patients vs 11.1 +/- 6.2% of 27 healthy persons. Pathogenetic mechanisms of relation between duodenal ulcer, chronic gastroduodenitis and chronic focuses of infection are discussed. Lymphatic pharyngeal ring is supposed to be biotopical for Helicobacter pylori.