Effect of biofilm formation by clinical isolates of Helicobacter pylori on the efflux-mediated resistance to commonly used antibiotics

Table 2 Minimal bactericidal concentration of selected antibiotics in biofilm-forming cells and their planktonic counterparts

Strain	MBC,μg/mL
	AMX		TET		ERY		MTZ
	MBC-P	MBC-B	MBC-P	MBC-B	MBC-P	MBC-B	MBC-P	MBC-B
Hp932	2	8	8	16	4	4	16	32
Hp141	2	4	4	16	2	4	16	32
Hp70	1	4	4	8	2	4	8	16

MBC: Minimal bactericidal concentration; AMX: Amoxicillin; TET: Tetracycline; MTZ: Metronidazole; B: Biofilm-forming; P: Planktonic counterparts.