Table I.
Groups of 5 ovines that were experimentally infected with Histophilus somni with strains isolated from different sources
| Group 1
H. somni isolated from the vaginal exudates of a clinically healthy ewe |
Group 2
H. somni isolated from the epididymis of a ram with orchitis and epididymitis |
Group 3
H. somni strain 2336, that was previously inoculated in a sheep and recovered from lung |
Group 4
H. somni isolated from the brain of a sheep with neurological signs |
Group 5
Negative control PSS |
|
|---|---|---|---|---|---|
| Percentage of animals with epididymitis within each group | 5/5
100% |
5/5
100% |
2/5
40% |
1/5
20% |
0/5
0% |
| Degree of macroscopic lesions at necropsy | +++ | ++++ | ++ | + | − |