Table 2.
Results of bacteriological examination of tissue samples (frequency table of the number of 'positive' samples per organ and the number of animals by the number of 'positive' samples).
| Organ | Group | Npositive | %positive | 95 % CI* | Total | |
|---|---|---|---|---|---|---|
| Caeca | 1 (Vaccination) | 18 | 90 | 68.3 | 98.8 | 20 |
| 2 (Control) | 19 | 95 | 75.1 | 99.9 | 20 | |
| Liver | 1 (Vaccination) | 16 | 80 | 56.3 | 94.3 | 20 |
| 2 (Control) | 18 | 90 | 68.3 | 98.8 | 20 | |
| Ovaries | 1 (Vaccination) | 7 | 35 | 15.4 | 59.2 | 20 |
| 2 (Control) | 13 | 65 | 40.8 | 84.6 | 20 | |
| Oviduct | 1 (Vaccination) | 3 | 15 | 3.2 | 37.9 | 20 |
| 2 (Control) | 7 | 35 | 15.4 | 59.2 | 20 | |
| Spleen | 1 (Vaccination) | 10 | 50 | 27.2 | 72.8 | 20 |
| 2 (Control) | 15 | 75 | 50.9 | 91.3 | 20 | |
| Number (%) of animals with k 'positive' samples (k = 0–5) | |||||||
|---|---|---|---|---|---|---|---|
| Group | 0 | 1 | 2 | 3 | 4 | 5 | Total |
| 1 (Vaccination) | 1 (5) | 3 (15) | 4 (20) | 7 (35) | 3 (15) | 2 (10) | 20 |
| 2 (Control) | 0 (0) | 2 (10) | 2 (10) | 2 (10) | 10 (50) | 4 (20) | 20 |
*CI: confidence interval.