TABLE 2.

Susceptibility to ciprofloxacin of WT S. Typhi and null mutants in glnA.

Strain	Inhibition haloes (mm ± SD)	MIC mg/L ± SD	MIC compared to control
S. Typhi STH2370	37.3 ± 1.25	0.078 ± 0	Control
glnA::EZ-Tn5	47.8 ± 0.76	0.039 ± 0	1/2 CIM
glnA::kan	48.0 ± 0.50	0.039 ± 0	1/2 CIM
glnA::FRT	48.2 ± 0.29	0.039 ± 0	1/2 CIM