| Microscopic lesions | ||
---|---|---|---|
 | ST121 (n = 9) | ST96 (n = 9) | Control (n = 6) |
Compact-capsule multifocal abscesses | 4 | 0 | 0 |
Compact-capsule unifocal abscesses | 0 | 1 | 0 |
Suppurative mastitis (lobular pattern) | 2 | 3 | 0 |
Cellulitis | 1 | 0 | 0 |
Mixed | 1 | 0 | 0 |
No lesions | 1 | 5 | 6 |