Table 2: Prevalence of H. pylori virulence factors among isolates from patients with gastric carcinoma, gastric ulcer, duodenal ulcer, and chronic gastritis.

Diagnosis† GC GU DU CG Total Number of isolates 20 32 31 16 99 CagA 20 (100.0%) 31 (96.8%) 31 (100.0%) 16 (100.0%) 98 (99.0%) CagE 19 (95.0%) 31 (96.9%) 30 (96.8%) 15 (93.8%) 95 (96.0%) CagM 19 (95.0%) 31 (96.8%) 31 (100.0%) 15 (93.8%) 96 (97.0%) CagT 19 (95.0%) 31 (96.8%) 31 (100.0%) 16 (100.0%) 97 (98.0%) orf10 18 (90.0%) 32 (100.0%) 31 (100.0%) 16 (100.0%) 97 (98.0%) orf13 18 (90.0%) 32 (100.0%) 31 (100.0%) 16 (100.0%) 97 (98.0%)

GC: gastric carcinoma; GU: gastric ulcer; DU: duodenal ulcer; CG: chronic gastritis.