Table 1.
The immunofluorescence analysis of DPV gE antigen on DPV-infected ducks
| Tissues | Hours post DPV infection (h) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 4 | 8 | 12 | 24 | 72 | 96 | 120 | 168 | 216 | ||
| Spleen | - | + | + | ++ | +++ | +++ | +++ | +++ | +++ | +++ | |
| Lymphoid organs | BF | - | + | + | ++ | ++ | +++ | +++ | +++ | +++ | +++ |
| Harderian gland | - | - | + | + | + | ++ | ++ | +++ | +++ | +++ | |
| Thymus | - | - | + | + | ++ | ++ | +++ | +++ | +++ | +++ | |
| Liver | - | - | + | + | ++ | +++ | +++ | +++ | +++ | +++ | |
| Digestive organs | duodenum | - | - | + | + | ++ | +++ | +++ | +++ | +++ | +++ |
| jejunum | - | - | + | + | ++ | +++ | +++ | +++ | +++ | +++ | |
| ileum | - | - | + | + | ++ | +++ | +++ | +++ | +++ | +++ | |
| Kidney | - | - | - | + | ++ | +++ | +++ | +++ | +++ | +++ | |
| Other organs | Myocardium | - | - | - | + | + | ++ | ++ | ++ | +++ | +++ |
| cerebrum | - | - | - | + | + | + | ++ | ++ | +++ | +++ | |
| Lung | - | - | - | + | + | ++ | ++ | +++ | +++ | +++ | |
negative(-), no fluorescing cells; weakly positive(+), the signal was faintly cells (less than 5%); positive(++), 5% to 50% was readily detected,; strongly positive(+++), the positive staining is intense more than 50%.