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Effect of transmission route on virulence of Pla− Y. pestis
| Y. pestis strain | Transmission route |
||
|---|---|---|---|
| i.v. | ID | Fleabite | |
| Wild type | <10 | 46 | 8/10 |
| Δpla | <10 | 1.7 × 106 | 3/10 |
| Δpla (complemented) | <10 | 17 | 8/10 |
LD50 values are given for i.v. and ID injection and disease incidence for fleabite transmission (no. of mice that developed terminal disease/no. of mice challenged).
