Biopsy specimens from antral mucosa in 65 consecutive patients presenting for gastroscopy were assessed histologically and microbiologically for the presence of C. pyloridis. Spiral bacteria were found in 63% of cases by Warthin-Starry silver stain and in 72% by culture on blood agar plates with Skirrow's antibiotic supplement. A significant association between the occurrence of C. pyloridis and chronic gastritis was noted; the association is not influenced by the type of gastritis, superficial or atrophic, or the degree of activity of gastritis.
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