Table 5.
Detection rate (%) by culture alone or a combination of culture and histopathology when individual tissues and combinations of tissues were examined (substudy 2)
| Tissues sampled | Culture | Culture and histopathology |
|---|---|---|
| Caecal Ln | 55·8 | 55·8 |
| Ileum | 44·2 | 46·5 |
| Jejunum | 37·2 | 39·5 |
| Mesenteric Ln | 48·8 | 58·1 |
| Caecal Ln, ileum | 67·4 | 69·8 |
| Caecal Ln, jejunum | 74·4 | 74·4 |
| Caecal Ln, mesenteric Ln | 72·1 | 83·7 |
| Jejunum, ileum | 62·8 | 62·8 |
| Jejunum, mesenteric Ln | 65·1 | 72·1 |
| Mesenteric Ln, ileum | 67·4 | 72·1 |
| Caecal Ln, ileum, jejunum | 83·7 | 83·7 |
| Caecal Ln, ileum, mesenteric Ln | 86·0 | 90·7 |
| Caecal Ln, jejunum, mesenteric Ln | 86·0 | 93·0 |
| Jejunum, mesenteric Ln, ileum | 79·1 | 83·7 |
| Caecal Ln, ileum, jejunum, mesenteric Ln | 97·7 | 100·0* |
MAP, Mycobacterium avium ssp. paratuberculosis; Ln, lymph node.
Data represent the proportion of evidently MAP-infected animals that had a positive result in any of the tissues sampled when examined by culture with or without histopathology.
*
This value is necessarily 100%