Table 3.
Comparison between the S1 ELISA and immunofluorescence assay (IFA) for detection of antibodies against porcine epidemic diarrhea virus (PEDV) on 242 serum samples (experimental and field samples).
| S1 ELISAa | |||||
|---|---|---|---|---|---|
| Positive | Indeterminate | Negative | |||
| IFA | Positive | 82 (33.4%)b | 0 | 1 (0.4%) | 83 (34.3%) |
| Negative | 13 (5.4%) | 8 (3.3%) | 138 (57.0%) | 159 (65.7%) | |
| 95 (39.2%) | 8 (3.3%) | 139 (57.4%) | Total | ||
a
OD values: positive ≥0.30; indeterminate ≥0.20 and <0.30; negative <0.20.
b
Data presented as number of samples (%).