TABLE 1.

Antimicrobial nonsusceptibility for 1,299 Nocardia strains isolated over a 6-year period

Organism (n)	% of strains with resulta
	TMP-SXT R	AMK R	IMI R/I	CTR R/I	AUG R/I	LZD R	CIP R/I	CLA R/I	MIN R/I	TOB R/I	MXF R/I (n)
N. abscessus complex (110)	0	0	69	2	22	0	100	71	15	0	92 (39)
N. amamiensis (2)	0	0	0	0	50	0	100	100	0	0	100 (1)
N. amikacinitolerans (7)	0	57	28	43	0	0	100	86	14	0	100 (5)
N. aobensis (2)	0	0	50	50	100	0	100	0	100	100	100 (2)
N. asteroides sensu stricto (3)	0	0	0	0	100	0	100	100	33	0	100 (2)
N. beijingensis complex (30)	0	0	7	3	97	0	96	37	20	0	95 (18)
N. blacklockiae (1)	0	0	100	0	0	0	100	0	100	100	0 (1)
N. brasiliensis (148)	0	0	99	51	4.7	0	99	97	76	0	1 (88)
N. brevicatena (1)	0	0	0	0	100	0	100	0	0	0	0 (0)
N. carnea (2)	0	0	0	0	100	0	0	50	100	0	0 (0)
N. cyriacigeorgica (264)	0	0	57	12	97	0	100	99	94	0.8	96 (128)
N. exalbida complex (4)	0	0	25	0	100	0	75	50	50	0	100 (1)
N. farcinica (204)	0.5	0	67	97	24	0	57	99.5	95	99.5	21 (99)
N. flavorosea (1)	0	0	0	0	100	0	0	100	0	0	0 (1)
N. grenadensis (2)	0	0	100	0	100	0	0	100	50	0	0 (0)
N. higoensis (2)	0	0	50	0	100	0	0	50	0	0	0 (0)
N. ignorata (1)	0	0	100	100	100	0	100	0	0	0	0 (1)
N. mexicana (1)	0	0	100	0	100	0	100	0	100	100	0 (0)
N. neocaledoniensis (1)	0	0	0	0	100	0	100	100	100	0	100 (1)
N. niigatensis (2)	0	0	100	100	100	0	0	0	100	0	0 (1)
N. niwae (6)	0	0	0	0	100	0	100	50	50	0	0 (0)
N. nova complex (320)	0	0	1	53	91	0	99	3	88	87	98 (162)
N. novab (246)	0	0	2	50	92	0	99	0	90	88	99 (132)
N. otitidiscaviarum (29)	0	0	93	100	100	0	93	93	55	38	65 (17)
N. paucivorans (11)	0	0	0	0	90	0	9	18	9	0	0 (5)
N. pseudobrasiliensis (13)	31	31	100	100	100	0	0	0	100	0	0 (7)
N. puris (7)	0	0	57	86	85	0	100	100	0	0	100 (1)
N. rhamnosiphila (4)	0	0	25	0	100	0	0	100	100	0	0 (2)
N. takedensis (1)	0	0	0	0	0	0	100	0	0	0	100 (1)
N. testacea (1)	0	0	0	0	100	0	0	100	100	0	0 (0)
N. thailandica (1)	0	0	0	0	100	0	100	0	100	0	0 (1)
N. transvalensis complex (83)	19	72	94	37	53	0	16	96	85	96	0 (41)
N. vermiculata (1)	0	0	0	0	100	0	100	0	100	0	0 (0)
N. vinacea (1)	0	0	0	0	100	0	100	0	100	0	0 (0)
N. yamanashiensis (1)	0	0	100	100	100	0	100	0	0	100	0 (1)
Nocardia sp. (32)	0	3	44	31	72	0	50	53	50	19	6 (16)
Total (1,299)	2	5	51	44	63	0	83	67	78	45	60 (642)

^aPercent of strains with resistant (R) or intermediate (I) interpretation are listed. Testing for moxifloxacin was only available for a subset of isolates; numbers of strains are indicated in the last column. TMP-SMT, trimethoprim-sulfamethoxazole; AMK, amikacin; IMI, imipenem; CTR, ceftriaxone; AUG, amoxicillin-clavulanic acid; LZD, linezolid; CIP, ciprofloxacin; CLA, clarithromycin; MIN, minocycline; TOB, tobramycin; MXF, moxifloxacin.

^bAntimicrobial nonsusceptibility results for the species N. nova are provided independently from those for the larger N. nova complex.