Table 3. O-acetyl content of Vi.
| Strain | O-acetyl content (mmol g−1) |
| S. Typhi BRD948 | 2.4±0.2 |
| DH5α(pGVXN158) | 2.7±0.2 |
| DH5α(pGVXN158vexC ::Tn5) | 2.5±0.3 |
| DH5α(pGVXN158vexE ::Tn5) | 2.4±0.2 |
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