Table 1 LD50 of C50336ΔsptP in BALB/c mice
Strain | Inoculation dose (CFU) | Number of dead mice/total number of mice | LD50 |
|---|---|---|---|
C50336 | 1.0 × 107 | 5/5 | 3.16 × 105 |
1.0 × 106 | 4/5 | ||
1.0 × 105 | 1/5 | ||
1.0 × 104 | 0/5 | ||
C50336△sptP | 1.0 × 108 | 0/5 | — |
1.0 × 107 | 0/5 | ||
1.0 × 106 | 0/5 | ||
1.0 × 105 | 0/5 | ||
1.0 × 104 | 0/5 |