FIG. 2.

Survival of mice inoculated intragastrically with the Y. pseudotuberculosis Δhfq strain. Groups of 10 mice were inoculated via oral gavage with the Y. pseudotuberculosis wild-type, Δhfq, or pYV⁻ strain (10⁷ CFU) and monitored for 21 days. (a) Survival of infected mice over 21 days. (b) Body weight of infected mice over 21 days. The plot shows median weight, indicated by a solid line; a box represents the 25th and 75th percentiles, and whiskers represent the range. Significance was calculated by Student's unpaired t test.