| epidemiology of helicobacter pylori infection in barbados. | the epidemiology of helicobacter pylori infection in barbadian patients and controls was studied. h. pylori was isolated from biopsies from 50/100 (50%) adult patients undergoing endoscopy for investigation of upper gastrointestinal tract symptoms. urease was detected in biopsies from 54 patients and gastritis was detected by histology in 71 patients. serology was performed using a commercial elisa method. using an igg concentration of 10 u/ml as a threshold, antibodies were detected in 78% of 1 ... | 1997 | 9149544 |