FIG 2.

Comparison of the effect of ceftriaxone (CRO) treatment versus no antibiotic on the renal bacterial burden of mice infected with ESBL- and non-ESBL-producing bacteria. Mice inoculated with ESBL-producing (E94, n = 22) and non-ESBL-producing (BRA, n = 22) bacteria were treated with ceftriaxone, and 21 mice received no antibiotic. Viable cell counts in the kidneys (CFU/g) are shown for untreated and CRO-treated mice infected with non-ESBL- and ESBL-producing bacteria for day 1, day 2, and day 6. Values are expressed as means ± standard errors. The statistical significance between columns is denoted by a bar and an asterisk (P < 0.01).