TABLE 2.

In vitro activity of linezolid against eight species of slowly growing NTM

Mycobacterial species	No. of isolatesb	MIC (μg/ml)a in broth
		Rangec	50%	90%	Mode	% Susceptible or intermediate
MAC	189	≤2->32	32	64	32	39
M. marinum	47	1-2	≤2	2	≤2	100
M. szulgai	10	≤2-4	≤2	4	4	100
M. gordonae	21	≤0.5-16	≤2	4	≤2	100
M. kansasii	19	≤0.5-≤2	≤2	≤2	≤2	100
M. simiae	15	8->32	32	>32	32	46
M. terrae or M. nonchromogenicum	11	≤2->32	16	32	16	73
M. triplex	10	2-16	≤4	8	≤4, ≤2	100

^a50% and 90%, MICs at which 50 and 90% of isolates are inhibited, respectively.

^bTotal, 322.

^cTotal range, ≤0.5 to >32 μg/ml.