Table 3.
Detection of E. coli with immunohistochemistry in the caecum of turkeys
| Sample type | Caecal lumen (content) | Caecal wall |
|---|---|---|
| Infected with monoxenic H. meleagridis (actual trial)a | ||
| Negative control (n = 9) | –b | – |
| No lesion (n = 11) | – | – |
| Mild lesion (n = 6) | 1c | – |
| Severe lesion (n = 6) | 3 | – |
| Infected with monoxenic H. meleagridis [29] | ||
| Negative control (n = 2) | – | – |
| LS 2 (n = 1) | – | – |
| LS 3 (n = 3) | 2 | – |
| LS 4 (n = 4) | 1 | – |
| Infected with xenic H. meleagridis [33] | ||
| Negative control (n = 2) | – | – |
| LS 3 (n = 1) | 1 | – |
| LS 4 (n = 5) | 3 (caecal content and/or necrotic mucosal epithelium) | – |
| Field cases with histomonosis | ||
| n = 2 | 2 (caecal content and necrotic mucosal epithelium) | – |