In Vitro Antibacterial Interaction of Doripenem and Amikacin against Multidrug-Resistant Acinetobacter baumannii, Pseudomonas aeruginosa, and Klebsiella pneumoniae Isolates

Table 2

Results of doripenem and amikacin interaction test.

Classification	A. baumannii	P. aeruginosa	K. pneumoniae	Total
DOR-S/AMK-S ( )
Synergy	1	0	0	1
Additive	5	5	2	12
Indifferent	0	1	4	5
Antagonist	0	0	0	0
DOR-S/AMK-R (n=14)
Synergy	0	0	0	0
Additive	3	0	1	4
Indifferent	3	2	5	10
Antagonist	0	0	0	0
DOR-R/AMK-S (n=18)
Synergy	0	0	0	0
Additive	1	1	4	6
Indifferent	5	5	2	12
Antagonist	0	0	0	0
DOR-R/AMK-R (n=18)
Synergy	0	0	0	0
Additive	0	1	1	2
Indifferent	6	5	5	16
Antagonist	0	0	0	0