. 2001 Oct;69(10):6179–6185. doi: 10.1128/IAI.69.10.6179-6185.2001

TABLE 6.

Mouse competition assay with CFT073 and its isogenic iron utilization strains

CFT073 vs.:	No. of mice	Competitive index^a
CFT073 vs.:	No. of mice	Bladders	Kidneys
CFT073-ENT/IUC	6^b	0.90 ± 0.38^c	1.11 ± 0.52^c
CFT073-IUT	7^d	0.008 ± 0.06^e	0
CFT073-LH	7^d	0.026 ± 0.003^e	0.058 ± 0.006^c

Competitive index is the ratio of output mutant to wild-type bacteria (recovered from the bladder or kidney) divided by the ratio of input mutant to wild-type bacteria (inoculated into the mouse). A competitive index of <1 indicates that the strain was recovered in lower numbers relative to the wild type.

Bacteria were not recovered from the kidneys of two of the mice.

P ≥ 0.1.

Bacteria were not recovered from the kidneys of one of the mice.

P < .001.