Table 1. Summary of ELISA to detect antibody against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in dogs.
| Number of samples |
Mean OD value | Standard deviation |
Number of samples exceeded mean + 2 OD (samples VNT positive) |
Remarks | |
|---|---|---|---|---|---|
| Clinical samples | 494 | 0.262 | 0.159 | 3 (1) | House hold dogs living in Tokyo area |
| Positive control | 1 | - | - | 1 (1) | SARS -CoV-2 PCR test positive dog |
| Negative control | 8 | 0.377 | 0.354 | 0 | Sera collected before SARS-CoV-2 pandemic |
| Anti-CRCoV Ab positive samples | 16 | 0.511 | 0.284 | 1 (0) | Anti-CRCoV antibody positive sera |
| Anti-CCoV Ab positive samples | 7 | 0.468 | 0.148 | 0 | Anti-CRCoV antibody positive sera |
OD, optical density; VNT, virus neutralization test.