TABLE 1.

Resistance selection and bactericidal activity of marbofloxacin

TMSW (%)	Inoculum size (CFU/ml)	Susceptibilitya	Minimal count (CFU/ml)	Final count (CFU/ml)	ABBC (log CFU/ml/h)
100	105	−	<100	2.106	53
		+	<100	1.108	51
	107	−	<100	7.104	60
		+	<100	6.108	56
	109	+	2.104	5.107	44
25	105	−	<100	6.104	54
	107	−	150	8.104	56
	109	−	103	3.104	53
0	105	−	<100	7.103	54
	107	−	<100	2.104	57
	109	−	600	1.104	51

^aSusceptibility is assessed at the end of the experiments. The populations that were mainly resistant to a marbofloxacin concentration of 0.128 μg/ml (+) or mainly susceptible to a concentration of 0.128 μg/ml (−) are noted.