TABLE 4.
Virulence testing of Y. pestis derivatives in mice infected subcutaneously
| Strain | Relevant characteristics | LD50 (CFU) |
|---|---|---|
| KIM5(pCDIAp)+ | Psn+ Hmu+ Has+ Lcr+ | <4.6 |
| KIM5-2081.1+ | Psn+ Hmu− Has− Lcr+ | <4.2 |
| KIM5-2045.7 | Psn− Hmu+ Has+ Lcr+ | >5.4 × 106 |
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