Table 1.
Immunohistochemistry of gastrointestinal tract tissues of IBV-D388 and QX vaccine. The number of IBV protein positive tissues (total out of three) at 1, 4, 7 and 8 days post infection (d.p.i.). $Only protein expression seen in the gizzard, never in the proventriculus; #Very limited protein expression (approximately 10 cells or less in one or two small clusters).
| Virus | days p.i. | Stomach$ | Small intestine | Large intestine | Cloaca |
|---|---|---|---|---|---|
| IBV-D388 | 1 | 0 | 0 | 0 | 0 |
| 4 | 0 | 3 | 3 | 2 | |
| 7 | 3 | 3 | 3 | 3 | |
| 8 | 2 | 2 | 3 | 3 | |
| IB Primo QX | 1 | 0 | 0 | 0 | 0 |
| 4 | 0 | 1# | 0 | 1 | |
| 7 | 1# | 0 | 0 | 2# | |
| 8 | 1 | 2 | 2 | 2 | |