TABLE 2.
Occurrence of the various rstR genes examined in this study among V. cholerae O1 and O139 strains
| rstR gene(s) | Original nomenclature (reference) | No. of positive isolates
|
|
|---|---|---|---|
| V. cholerae O1 | V. cholerae O139 | ||
| rstR1 | rstRclass (8) | 9 | 0 |
| rstR2 | rstRET (8) | 141a | 83 |
| rstR3 | rstRCalc (8) | 0 | 0 |
| rstR4 | rstREnv (10) | 0 | 0 |
| rstR1 + rstR2 | Not reported | 6 | 0 |
| rstR2 + rstR4 | Not reported | 6 | 6 |
| rstR2 + rstR3 | Combination (8) | 0 | 3 |
| rstR1 + rstR2 + rstR3 | Not reported | 0 | 1 |
| Noneb | 7 | 2 | |
| Total | 169 | 95 | |
a
Two strains were negative for the ctxA gene.
b
None, negative for all of the rstR genes tested.