TABLE 4.
Strain | No. of dead animals/total no. tested at challenge dose (CFU) of: |
LD50 (CFU) | ||||
---|---|---|---|---|---|---|
1.0 × 105 | 1.0 × 104 | 1.0 × 103 | 1.0 × 102 | 50 | ||
WT | 15/15 | 13/15 | 12/15 | 7/15 | 4/15 | 1.31 × 102 |
ΔhylB mutant | 15/15 | 11/15 | 8/15 | 3/15 | 1/15 | 7.94 × 102 |
CΔhylB complemented strain | 15/15 | 12/15 | 10/15 | 6/15 | 3/15 | 2.37 × 102 |