FIG 6.

Loss of yceG and yceH increases susceptibility to mammalian defenses. (A) Survival of WT B. anthracis Sterne (black bars) and the TN1 mutant (white bars) after a 15-min incubation with human whole blood. Experiments were performed using blood from three individual donors, and results are combined and presented as means ± standard errors of the means. *, P < 0.05 by paired t test. (B) Enumeration of surviving CFU from kidneys of mice infected intravenously with a 1:1 ratio of WT B. anthracis Sterne to TN1. **, P < 0.01 by paired t test.