Fig. 4

Influence of sex and age on seroprevalence of brucellosis, Q fever, Rift Valley fever and multiple-infection in cattle. A Seroprevalence of females and males with 95% confidence intervals are represented by histogram. P-values were determined according to the Mann–Whitney test (*p < 0.05; **p < 0.01; ***p < 0.001). B Seroprevalence in different age groups (in years) with 95% confidence intervals are represented by histogram. P-values were determined according to Kruskal–Wallis test followed by Dunn’s correction (*p < 0.05; **p < 0.01; ****p < 0.0001)