Percentage of intact cag PAI and partially deleted cag PAI and deleted cag PAI among the Kolkata strains with different clinical outcome. In total, 82.6% of the strains have intact cag PAI while only 9.6% of the strains have partially deleted cag PAI. Only 7.7% have cag PAI with a complete deletion. The frequency of complete cag PAI, partially deleted cag PAI, and deleted cag PAI among the duodenal ulcer patients and asymptomatic volunteers/non-ulcer dyspepsia were 80% and 86.4%, 6.6% and 13.7%, and 13% and 0%, respectively.