Table 1 Summary of analysis for risk factors of (CCHF) among Camels in Khartoum state, Sudan (n = 361 camels) by using chi-square test
From: Crimean Congo hemorrhagic fever among the one-humped camel (Camelus dromedaries) in Central Sudan
Risk factors | Animals tested | Animals affected (%) | df | χ2 | p-value |
|---|---|---|---|---|---|
Locality | 5 | 44.74 | 0.001 | ||
East Nile | 60 | 5 (8.3%) | |||
Bahry | 60 | 8 (13.3%) | |||
Omdurman | 60 | 23 (38.3%) | |||
Ombadda | 60 | 3 (5%) | |||
Jabal Awlia | 60 | 12 (20%) | |||
Karary | 61 | 26 (42.6%) | |||
Age | 1 | 5.64 | 0.01 | ||
Small | 73 | 23 (31.5%) | |||
Old | 288 | 54 (18.8%) | |||
Sex | 1 | 0.70 | 0.48 | ||
female | 309 | 65 (21%) | |||
male | 52 | 12 (23%) | |||
Breed | 2 | 17.39 | 0.001 | ||
Western | 128 | 13 (10.4%) | |||
Anafi | 58 | 21 (36.2%) | |||
Bushari | 237 | 43 (24.2%) | |||
Body condition | 2 | 3.58 | 0.16 | ||
Emaciation | 3 | 0 (0%) | |||
Thin | 136 | 23 (16.9%) | |||
Fat | 222 | 54 (24.3) | |||
Farm yard | 1 | 7.03 | 0.008 | ||
In door | 172 | 47 (23.3%) | |||
Out door | 189 | 30 (15.9%) | |||
Grazing system | 1 | 0.50 | 0.47 | ||
Stationary | 241 | 54 (22.4%) | |||
Nomadic | 120 | 23 (19.2%) | |||
Herd size (camels/ herd) | 2 | 2.30 | 0.31 | ||
Small <20 | 72 | 16 (22.2%) | |||
Medium = 21–40 | 52 | 15 (28.8%) | |||
Large >40 | 237 | 46 (19.4%) | |||
Ticks present | 2 | 1043 | 0.005 | ||
No | 26 | 11 (42.3%) | |||
Small | 125 | 31 (24.8%) | |||
large | 210 | 35 (16.7%) | |||
Ticks control | 1 | 8.54 | 0.003 | ||
No | 283 | 51 (18%) | |||
Yes | 78 | 26 (33.3%) |