FIG 5 .

K. pneumoniae ΔybtX strain infection. (A) Lung bacterial burden of mice inoculated with wild-type K. pneumoniae strain VK148. Data shown are from two individual experiments; median values are indicated by horizontal lines. (B) H&E staining of mice inoculated with wild-type or ΔybtX K. pneumoniae. (C) Total lung weights of mice inoculated with wild-type or ΔybtX K. pneumoniae. The experiment was performed in duplicate with at least five mice. For panels A and C, mice that did not survive to the designated time point are represented by an “X.” The asterisk signifies a significant difference by two-way analysis of variance (P < 0.05).