TABLE 3.
Susceptibility of PCM mice to E. coli O157:H7 strain N-9
Mice fed witha: | Inoculum size (CFU) | Mortality (%) at 10 days postinfectionb
|
|
---|---|---|---|
N-9 | SMrN-9 | ||
Low-protein diet | 2 × 105 | 55 | 50 |
2 × 106 | 90 | 85 | |
2 × 107 | 95 | 90 | |
Full-protein diet | 2 × 105 | 0 | 0 |
2 × 106 | 0 | 0 | |
2 × 107 | 0 | 0 |
Groups of 10 mice were given either a low-protein diet (PCM group) or a full-protein diet from 2 weeks before and during the experiment.
Experiments were repeated four times, and the mortality rate is expressed as the mean of four tests.