TABLE 2.

MICs for Aeromonas species in this study^a

Antimicrobial agent	A. jandaei (17)		A. schubertii (12)		A. trota (15)		A. veroniib (12)
	MIC50	MIC90	MIC50	MIC90	MIC50	MIC90	MIC50	MIC90
Ampicillin	—c	—	—	—	4	8	—	—
Ampicillin-sulbactam	—	—	8	16	8	8	—	—
Piperacillin	32	—	8	16	8	8	8	16
Ticarcillin	64	—	8	32	8	8	32	64
Cefazolin	16	—	4	—	4	16	4	—
Cefotaxime	4	4	4	4	4	4	4	4
Cefoxitin	2	8	2	—	8	16	2	4
Ceftazidime	2	2	2	2	2	2	2	2
Ceftriaxone	4	4	4	4	4	4	4	4
Cefuroxime	2	2	2	8	2	4	2	2
Amikacin	4	8	4	16	4	8	8	16
Gentamicin	2	4	2	4	2	2	2	4
Tobramycin	4	4	4	—	2	2	4	6
Imipenem	8	—	4	4	4	4	8	—
Aztreonam	8	8	8	8	8	8	8	8
Ciprofloxacin	1	1	1	1	1	1	1	1
Ofloxacin	2	2	2	2	2	2	2	2
Trimethoprim-sulfamethoxazole	0.5	0.5	0.5	0.5	0.5	2	0.5	0.5

^aMIC₅₀s and MIC₉₀s are given in micrograms per milliliter. Parenthetical values after strains are numbers of strains tested. 

^bA. veronii biotype veronii. 

^c—, no MIC₅₀ or MIC₉₀.