Numbers of CFU of wild-type B. ovis, B. ovis ΔabcBA, and encapsulated B. ovis ΔabcBA recovered from intraperitoneal macrophages (A) and spleens (B) of male BALB/c mice at 24 h postinfection. Raw data were logarithmically transformed prior to ANOVA, and means were compared by Tukey's test. Significant differences in CFU numbers between B. ovis ΔabcBA and encapsulated B. ovis ΔabcBA and between wild-type B. ovis and the other groups are indicated. *, P < 0.05; **, P < 0.01; ***, P < 0.001.