TABLE 2 .

Validation of screening hits

Drug	No. of biofilm-associated cells (log10) at drug concn (µg·ml−1) of:
	0	4	8	16	32	64	128	256
Ciprofloxacin	8.67 (± 0.20)	6.81 (± 0.20)	5.94 (± 0.80)	6.19 (± 0.90)	5.05 (± 1.20)	4.13 (± 0.20)	4.27 (± 1.90)	4.03 (± 0.20)
Levofloxacin	9.26 (± 0.10)	8.14 (± 0.20)	6.03 (± 0.30)	5.91 (± 0.90)	5.74 (± 0.50)	3.57 (± 0.20)	5.12 (± 1.90)	2.41 (± 0.60)
Tobramycin	8.52 (± 0.00)	7.77 (± 0.10)	7.46 (± 0.02)	6.85 (± 0.80)	5.86 (± 0.30)	6.18 (± 0.30)	6.28 (± 0.80)	6.09 (± 1.50)
Zinc pyrithione	8.78 (± 0.10)	8.46 (± 0.02)	7.70 (± 0.10)	7.32 (± 0.60)	7.66 (± 0.01)	6.05 (± 0.70)	6.80 (± 0.10)	6.61 (± 0.10)
Rifampin	8.46 (± 0.30)	8.97 (± 0.20)	8.46 (± 0.30)	8.67 (± 0.20)	8.09 (± 0.10)	8.15 (± 0.90)	7.62 (± 0.30)	7.70 (± 0.10)
Spectinomycin	8.46 (± 0.30)	8.17 (± 0.01)	7.60 (± 0.10)	7.94 (± 0.10)	7.51 (± 0.01)	7.64 (± 0.10)	7.49 (± 0.02)	7.51 (± 0.01)
Tetracycline	8.95 (± 0.20)	8.52 (± 0.40)	8.46 (± 0.30)	8.57 (± 0.50)	8.07 (± 0.20)	7.78 (± 0.20)	7.87 (± 0.10)	7.36 (± 0.10)