Serology results with the CagA ELISA for serum from Helicobacter pylori infected individuals
| Number of sera giving the following CagA ELISA result | |||
|---|---|---|---|
| H pylori cag PAI genotype: status of infecting strain | Positive | Negative | Borderline |
| ELISA, enzyme linked immunosorbent assay; PAI, pathogenicity island. | |||
| cagA+ (cagDE/virD4 not tested) | 34 | 5 | 2 |
| cagA−/cagDE+ (virD4 not tested) | 0 | 0 | 0 |
| cagA−/cagDE−/virD4+ | 0 | 1 | 0 |
| cagA−/cagDE−/virD4− | 0 | 20 | 0 |
| Total | 34 | 26 | 2 |