Evaluation of Antibacterial Activity of Three Quaternary Ammonium Disinfectants on Different Germs Isolated from the Hospital Environment

Table 2

Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) of the three disinfectants tested against many resistant and susceptible strains.

	MIC (mg/ml)			MBC (mg/ml)
	DDN9®	Spray	Phagosurf ND®	DDN9®	Spray	Phagosurf ND®
E. coli (7)	—	—	—	—	—	—
K. pneumoniae	—	—	—	—	—	—
E. coli (9)	—	4	—	—	4	—
E. cloacae	—	—	—	—	—	—
P. aeruginosa	—	—	—	—	—	—
A. baumannii	—	—	—	—	—	—
S. aureus	0.25	4	—	0.25	4	—
E. coli ATCC25922	—	4	—	—	4	—
S. aureus ATCC29213	0.25	2	4	0.25	2	4
P. aureus ATCC27853	—	4	—	—	4	—