TABLE 2.
vacA genotypes of H. pylori wastewater isolates
| Isolate |
vacA fragment size (bp)a
|
Genotype | ||||
|---|---|---|---|---|---|---|
| s1a | s1b | s2 | m1 | m2 | ||
| W10 | 190 | — | — | 290 | — | s1a/m1 |
| W22 | 190 | 187 | — | 290 | — | s1a and s1b/m1 |
| W41 | 190 | — | — | (450) | — | s1a/m1 |
| W53 | 190 | — | — | (400) | — | s1a/m1 |
| W56 | 190 | — | 199 | (400) | 352 | s1a s2 m1 m2 |
| W92 | 190 | — | — | 290 | — | s1a/m1 |
| W99 | — | — | (250) | — | 352 | s2/m2 |
| W100 | — | — | 199 | — | 352 | s2/m2 |
| W115 | — | — | (250) | (350) | — | s2/m1 |
| W116 | 190 | — | 199 | 290 | — | s1a and s2/m1 |
| W122 | 190 | — | — | 290 | — | s1a/m1 |
a
PCR-amplified fragment. Values in parentheses indicate sizes different from those expected. —, no PCR-amplified fragment.