Table 1.
Type of strain | No. of mice infected/total at dose of: |
ID50 | ||||
---|---|---|---|---|---|---|
5 × 102 | 5 × 103 | 5 × 104 | 5 × 105 | 5 × 106 | ||
Wild type | 0/8 | 3/8 | 10/10 | 8 × 103 | ||
plzA mutant | 0/8 | 1/8 | 6/12 | 6/10 | 10/10 | 9 × 104 |
Complemented plzA+ | 1/8 | 4/8 | 10/10 | 4 × 103 |