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Comparison of an indirect hemagglutination (IHA) test and the TonB2 ELISA in detecting antibody to A. pleuropneumoniae in 223 clinical serum samples from pig herds in which the infection and vaccination status were unknown
| Number of samples
|
|||
|---|---|---|---|
| TonB2 ELISA resulta |
|||
| IHA test result | Positive | Negative | Total |
| Positive | 173 | 9 | 182 |
| Negative | 5 | 36 | 41 |
| Total | 178 | 45 | 223 |
Relative sensitivity of TonB2 ELISA, 95% (173/182); relative specificity, 88% (36/41); correlation, 94% (173 + 36)/223.
