Table 2.
Distribution of seropositivity (%) to Brucella antigens in indigenous cattle (at different levels) across the study areas
| Study areas | Animal level* | Herd level | Village level | ||||
|---|---|---|---|---|---|---|---|
| Production system | Zones | No of animals |
Prevalence (95% CI) |
No of herds |
Prevalence (95% CI) |
No of Villages |
Prevalence (95% CI) |
| Mixed farming | Dawro | 104 | 0 (-) | 13 | 0 (0) | 7 | 0 (0) |
| Gedeo | 161 | 0.5 (0.05, 1.5) | 17 | 5.9 (0.3, 30.8) | 10 | 10 (0.5, 45.9) | |
| Hadiya | 245 | 3.5 (1.1, 5.8) | 20 | 30.0 (12.8, 54.3) | 17 | 35.3 (15.3, 61.4) | |
| Sidama | 390 | 1.8 (0.4, 3.0) | 37 | 13.5 (5.1, 29.6) | 26 | 19.2 (7.3, 40.0) | |
| Pastoral system | Borana | 271 | 4.7 (2.1, 7.3) | 16 | 68.8 (41.5, 87.9) | 6 | 100.0 |
| Jijiga | 62 | 3.0 (1.1, 7.1) | 4 | 50.0 (9.2, 90.8) | 4 | 50.0 (9.2, 90.8) | |
| Shinle | 210 | 6.6 (3.1, 10.1) | 15 | 40.0 (17.1, 67.1) | 14 | 42.9 (18.8, 70.4) | |
| South Omo | 180 | 3.4 (0.9, 6.1) | 12 | 33.3 (11.3, 64.6) | 12 | 33.3 (11.3, 64.6) | |
| Total | 1623 | 3.5 (2.4, 4.5) | 134 | 26.1 (19.1, 34.5) | 96 | 31.3 (22.4, 41.6) | |
* Animal level seroprevalence was calculated following adjustment for sample weight