A total of 2668 sera samples from 386 herds were obtained.
The apparent individual prevalence of C. burnetii seropositive was 14.5% (386/2668) (CI95%: 13.1–15.8%)
,where as true prevalence was 12.6% (CI95%: 11.3–13.9%).Individual prevalence was significantly higher (p < 0.05)in females (15.5%) than in males (8.5%) and in cattle>4 years old (median value) (20.2%) than in cattle ≤4years (10.6%). The herd prevalence was 46.9% (181/386)(CI95%: 41.9–51.9%), and the within herd prevalence ranged between 8% and 100% (mean: 25.0%; Q1: 12.5%, Q2: 25.0%,Q3: 37.5%). Choropleth maps (Figs. 1 and 2) show the distribution of the seropositive at the individual and herd levels. Individual and herd prevalence rates appeared to be higher in the northern part of the country.