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Specificities of tests for detection of M. avium subsp. paratuberculosis-infected cattle in seven uninfected herds
| Test | No. of cows test negative/total no. tested | % Specificitya | 95% CI |
|---|---|---|---|
| Fecal PCR | 346/347 | 99.7 (a) | 99.1-100 |
| Serum ELISA A | 342/359 | 95.3 (b) | 84.0-100.0 |
| Serum ELISA B | 358/359 | 99.7 (a) | 98.5-100.0 |
| Milk ELISA | 359/360 | 99.7 (a) | 98.5-100.0 |
Different letters in parentheses indicate differences in specificity (P < 0.05). The source of ELISA specificity estimates was reference 7.
