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Shigella flexneri serotypes isolated in southern Vietnam between 1995 and 2008.
| S. flexneri serotype | Number | Percentage (%) |
|---|---|---|
| 1a | 0 | 0 |
| 1b | 0 | 0 |
| 1c | 4 | 2.9 |
| 2a | 59 | 43.4 |
| 2b | 8 | 5.9 |
| 3a | 13 | 9.6 |
| 3b | 2 | 1.5 |
| 3c | 16 | 11.8 |
| 4 | 7 | 5.1 |
| 4a | 5 | 3.7 |
| 4b | 1 | 0.7 |
| 4x | 0 | 0 |
| 5a | 0 | 0 |
| 6 | 13 | 9.6 |
| x | 0 | 0 |
| y | 0 | 0 |
| Not typed | 8 | 5.9 |
| Total | 136 | 100 |
