Table 1.
Prevalence of Johne's disease in dairy farms (n = 30) using multiple diagnostic tests.
| Microscopic examination | Serum ELISA | Milk ELISA | Milk PCR | |
|---|---|---|---|---|
| Dairy cattle tested | 355 | 315 | 209 | 201 |
| Positive | 131 | 49 | 34 | 29 |
| Percent prevalence | 36.9 | 15.6 | 16.3 | 14.4 |
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