TABLE 2.
Strain | Time p.i. | No. of animals positive/no. inoculated at a STEC dosea of:
|
|
---|---|---|---|
105 CFUa | 104 CFU | ||
86-24 | Initial | 4/6 | 2/6 |
2 wk | 2/6 | 0/6 | |
2 mo | 1/6 | 0/6 | |
3081 | Initial | 2/6 | 0/6 |
2 wk | 0/6 | 0/6 | |
2 mo | 0/6 | 0/6 | |
2041 | Initial | 6/6 | 6/6 |
2 wk | 6/6 | 3/6 | |
2 mo | 2/6 | 0/6 | |
637 | Initial | 6/6 | 4/6 |
2 wk | 2/6 | 1/6 | |
2 mo | 0/6 | 0/6 | |
E2348/69 | Initial | 6/6 | 5/6 |
2 wk | 0/6 | 3/6 | |
2 mo | 0/6 | 0/6 |
STEC 86-24 and 3081 were inoculated at 105 or 104 CFU/strain/animal, and ETEC 2041, ETEC 637, and EPEC E2348/69 were inoculated at 1010 CFU/strain/animal.