Table 3.
Distribution of Virulence-Related Genes Among Shigella Isolates in Anhui, China
| Gene | Total | ||
|---|---|---|---|
| S. flexneri | S. sonnei | P-value | |
| n=449 | n=68 | ||
| ipaH | 449 (100%) | 68 (100%) | |
| ial | 431 (96.0%) | 51 (75.0%) | <0.0001# |
| ipaA | 442 (98.4%) | 65 (95.6%) | |
| ipaB | 448 (99.8%) | 67 (98.5%) | |
| ipaC | 443 (98.7%) | 66 (97.1%) | |
| ipaD | 443 (98.7%) | 65 (95.6%) | |
| virB | 439 (97.8%) | 66 (97.1%) | |
| virF | 431 (96.0%) | 51 (75.0%) | <0.0001# |
| set | 420 (93.5%) | 0 | |
| sen | 413 (92.0%) | 60 (88.2%) | |
| icsA | 448 (99.8%) | 67 (98.5%) | |
| icsB | 439 (97.8%) | 66 (97.1%) | |
| sigA | 415 (92.4%) | 64 (94.1%) | |
| sat | 421 (93.8%) | 0 | |
| pic | 396 (88.2%) | 0 | |
| sepA | 394 (87.8%) | 0 | |
Note: #Fisher’s exact test.