TABLE 1.
Homologous and heterologous HAB challenge of B31 infection-immune rabbitsa
| Rabbit group
|
Challenge strain | No. with EM lesions/total no. | No. with positive cultures/no. tested
|
||
|---|---|---|---|---|---|
| Skin
|
Tissue, 3 wk | ||||
| 8 days | 3 wk | ||||
| B31 immune | B31 | 0/5 | 0/5 | 0/5 | 0/5 |
| N40 | 5/5 | 5/5 | 5/5 | 5/5 | |
| 297 | 5/5 | 5/5 | 0/5 | 0/5 | |
| Sh2-82 | 5/5 | 5/5 | 5/5 | 3/5 | |
| Naive | B31 | 5/5 | 5/5 | 5/5 | 3/3 |
| N40 | 5/5 | 5/5 | 5/5 | 3/3 | |
| 297 | 5/5 | 5/5 | 5/5 | 3/3 | |
| Sh-282 | 5/5 | 5/5 | 5/5 | 3/3 | |
a
Rabbits were challenged with four EM skin biopsies containing HAB. Rabbits were scored positive if any one of spinal cord, joint, or node tissues was culture positive.