Table 5.

Ciprofloxacin inhibition zone diameters of B. anthracis-positive blood cultures.

	Inhibition Zone Diameter (mm)
Incubation Duration (h)	Standard Culture a	At the Alert	18 h after the Alert, Incubation in the Device	3 h after the Alert, at Room Temperature
6	21	20–21	20–21	18–21
8	22–25	23–25	22–24	20–22
16	26	23–26	ND	ND
18	26	23–26	ND	ND
20	26	23–26	ND	ND
23	24–26	23–26	22–25	21–24

^a Ciprofloxacin inhibition-zone diameter for the standard culture were taken from Table 2; ND—not determined; the diameters were determined by at least three independent assays.