TABLE 3 .
Strain | Dose of χ11484 (CFU) |
No. of mice alive after inoculation with χ11484/total no. |
No. of mice alive after challenge with χ3761/ total no. (% survival) |
---|---|---|---|
χ11484 | 1.4 × 109 | 6/6 | 6/6 (100) |
1.4 × 107 | 6/6 | 6/6 (100) | |
1.4 × 105 | 6/6 | 6/6 (100) | |
8.4 × 102 | 6/6 | 4/6 (67) | |
None (control) | 0/3 (0) |
BALB/c mice were immunized orally with the indicated dose of strain χ11484 (all mice survived) and challenged 4 weeks after immunization with ~1 × 109 CFU of S. Typhimurium wild-type strain (χ3761).