Table 1.
Herd, animal and within-positive herd animal prevalence of BTB using SICCT test at the standard and severe interpretations.
| Site | Level | n | > 4 mm cut-off |
> 2 mm cut-off |
||
|---|---|---|---|---|---|---|
| n positive | Prevalence (95% CI) | n positive | Prevalence (95% CI) | |||
| Gondar | Herd | 59 | 10 | 17 (9, 28) | 23 | 73 (60, 83) |
| animal | 976 | 14 | 1.4 (0.9, 2) | 42 | 4.3 (3, 6) | |
| Animal within-positive herdδ | 302 (549)* | 14 | 8.2 (4, 12) | 42 | 11 (7, 14) | |
| Hawassa | Herd | 54 | 6 | 11 (5, 22) | 24 | 67 (53, 78) |
| animal | 960 | 29 | 3 (2, 4) | 66 | 7.4 (5, 9) | |
| Animal within-positive herd | 212 (600)* | 29 | 8.7 (2, 15) | 66 | 9.2 (7, 12) | |
| Mekelle | Herd | 61 | 23 | 38 (27, 50) | 32 | 57 (45, 69) |
| animal | 818 | 100 | 12 (10, 15) | 141 | 17.2 (15, 20) | |
| Animal within-positive herd | 393 (581)* | 100 | 32.7 (20, 45) | 141 | 30.5 (20, 41) | |
| Total | Herd | 174 | 39 | 22.4 (17, 29) | 79 | 65.5 (58, 72) |
| animal | 2754 | 142 | 5.2 (4, 6) | 248 | 9 (8, 10) | |
| Animal within-positive herd | 903 (1730)* | 142 | 22.7(15, 31) | 248 | 18.3 (13, 23) | |
*
Numbers outside brackets shows number of animals within positive herds by standard interpretation while numbers inside brackets are number of animals within positive herds by severe interpretation.
δ
Within-herd prevalence was average of animal level prevalence in the positive herds based on the respective cutoff.