Table 1.
Results of various laboratory tests in 3 cases of equine abortion caused by leptospiral infection.
| Case | Fetal Organs | Specific Histologic Lesions* | Warthin-Starry* | Immunohistochemistry* | MAT† |
|---|---|---|---|---|---|
| 1 | Lung | + | + | + | |
| Liver | + | + | + | Hardjo, Swajizak, Mini: 1: 200 | |
| Kidney | + | − | + | ||
| Spleen | − | − | + | Sejroe: 1: 1,600 | |
| Heart | − | + | + | ||
| Brain | + | − | − | ||
| Allantochorion | − | + | + | Pomona: 1: 800‡ | |
| 2 | Lung | − | − | + | |
| Liver | + | − | + | ||
| Kidney | + | − | + | ||
| Spleen | + | − | + | Hardjo, Sejroe: 1: 800 | |
| Heart | + | − | + | Swajizak: 1: 100 | |
| Thymus | − | − | + | ||
| Brain | − | − | − | ||
| Allantochorion | + | + | + | ||
| 3 | Lung | − | − | + | |
| Liver | + | − | + | Sejroe: 1: 3,200 | |
| Kidney | + | + | + | Grippotyphosa: 1: 800 | |
| Adrenal gland | − | + | + | Hardjo, Swajizak: 1: 400 | |
| Heart | − | + | + | Mini: 1: 200 | |
| Brain | + | − | + | ||
| Leptospira positive organs | 8/21 (38.1%) | 19/21 (90.5%) |
*
+ = lesions/leptospires are present;
− = lesions/leptospires are not present.
†
Highest titer against Leptospira serovars in the sera of aborted mares with microscopic agglutinations test at the time of abortion. MAT = microscopic agglutination test.
‡
Four weeks after the time of abortion.