| Diagnostic test |
Advantage |
Sensitivity |
Specificity |
Limitation |
| Antibody detection (serum ELISA) |
Rapid and economical |
15-85%, |
97-100% |
Can be detected only in the later stages of disease by the time the entire environment could have been contaminated |
| Antibody detection (Milk ELISA) |
Rapid and economical |
21-64%, |
80-99% |
| Organism detection (Fecal Culture) |
Slow and expensive |
50% |
95% |
Low sensitivity |
| IFN-γ assay |
Rapid and sensitive; early diagnosis |
- |
- |
Low specificity |
|
