| Origin |
Number of chickens examined |
SAT |
Prevalence (%) |
| Positive |
Negative |
| HU (Exotic-intensive) |
309 |
95 |
214 |
30.7 |
| DU (Exotic-intensive) |
40 |
13 |
27 |
32.5 |
| Diredawa (Local-back yard) |
44 |
17 |
27 |
38.6 |
| Total |
393 |
125 |
268 |
31.8 |
HU: Haramaya University; DU: Dire Dawa University, SAT= Serum agglutination test. |