Table 2.
Comparison of the pELISA, IFA, and the commercial IBV ELISA kit for 250 field serum samples.
| Serum | |||
|---|---|---|---|
| samples | IFA | pELISA | IDEXX |
| 223 serum samplesa | + | + | + |
| 8,283 | + | + | − |
| 8,284 | + | + | − |
| 6,817 | + | + | − |
| 6,823 | + | + | − |
| 6,878 | + | + | − |
| 6,872 | + | + | − |
| 6,819 | + | + | − |
| 8,354 | + | + | − |
| 86 | − | + | − |
| 23 | + | − | + |
| 8,358 | + | − | + |
| 8,342 | − | − | + |
| 8,348 | − | − | + |
| 8,370 | − | − | + |
| 8,366 | − | − | + |
| 8,371 | − | − | + |
| 11 serum samplesb | − | − | − |
+, Positive; −, negative.
a
Number of serum samples tested positive by all three methods.
b
The number of the negative serum samples by three methods.