Table 3 Morbidity, mortality, and case fatality rates of infectious bronchitis in the study areas
Area | Farm | No of chickens | No of cases | No of death | Morbidity (%) | Mortality (%) | Fatality (%) | Type and number of pooled samples collected | ||
|---|---|---|---|---|---|---|---|---|---|---|
Swab | Tissue | Total | ||||||||
Mekele | Farm 1 Farm 2 Farm 3 | 830 300 110 | 53 50 35 | - | 6.39 16.67 31.81 | 0 | 0 | 4 4 5 | 3 2 - | 7 6 5 |
- | 0 | 0 | ||||||||
- | 0 | 0 | ||||||||
Bishoftu | Farm 4 | 2000 4500 3000 1150 200 900 1000 400 | 105 | - | 5.25 | 0 | 0 | 2 6 3 3 1 5 2 2 | 1 1 1 - 1 - 2 1 | 3 7 4 3 2 5 4 3 |
Farm 5 | 200 | 15 | 4.44 | 0.33 | 7.5 | |||||
Farm 6 | 200 | 20 | 6.66 | 0.66 | 10 | |||||
Farm 7 | 575 | - | 50 | 0 | 0 | |||||
Farm 8 | 15 | - | 7.5 | 0 | 0 | |||||
Farm 9 | 80 | 2 | 8.88 | 0.22 | 2.5 | |||||
Farm 10 | 40 | 3 | 4 | 0.3 | 7.5 | |||||
Farm 11 | 30 | 2 | 7.5 | 0.5 | 6.66 | |||||
Total | 11 | 14,390 | 1383 | 42 | 9.61 | 0.29 | 3.04 | 37 | 12 | 49 |