Figure 6From: Brucella suis urease encoded by ure 1 but not ure 2 is necessary for intestinal infection of BALB/c miceSurvival of B. suis strains 1330, 1330Δure 1K, 1330Δure 2K, and 1330Δure 2C after incubation at pH 2.0 with or without urea. At each urea concentration, the P value for the difference among mean cfu was <0.005. At each urea concentration, the mean values designated by different symbols differ one from another significantly; and the mean values that share the same symbol do not differ one from another significantly.Back to article page