Table 1. LD50 values of each strain.
| Strain | LD50 value |
| 1566 | 1.03×108 |
| NIH230 | 1.11×106 |
| NIH230::csrS + | 1.52×108 |
| 1566ΔcsrS | 8.60×105 |
| NIH230slo | 3.33×107 |
| NIH230scpC | 1.04×107 |
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