TABLE 3.

Susceptibilities of M. pneumoniae to new antimicrobial agents^a compared with those to older reference agents

Agent (no. of strains)	MIC (μg/ml)
	Range	50%	90%
New agents
Linezolid (24)	>64	>64	>64
Evernimicin (40)	2.0–4.0	4.0	4.0
Tetracyclines, glycylcycline (GAR-936)
GAR-936 (30)	0.06–0.25	0.12	0.25
Tetracycline (30)	0.5–2.0	0.5	1.0
Minocycline (30)	0.25–1.0	0.5	1.0
Macrolides, lincosamide, streptogramins, ketolide
Dirithromycin (45)	0.12–0.5	0.25	0.25
Dalfopristin (48)	0.06–1.0	0.25	0.5
Quinupristin-dalfopristin (48)	0.004–0.06	0.015	0.03
Telithromycin (47)	0.008–0.06	0.008	0.008
Azithromycin (45)	0.008–0.12	0.015	0.03
Clarithromycin (45)	0.015–0.06	0.03	0.03
Erythromycin (45)	0.03–0.12	0.06	0.06
Roxithromycin (40)	0.06–0.25	0.12	0.25
Josamycin (21)	0.03–0.12	0.03	0.06
Quinolones
Gatifloxacin (41)	0.25–1.0	0.25	0.5
Grepafloxacin (41)	0.06–0.25	0.12	0.25
Levofloxacin (41)	0.5–2.0	1.0	2.0
Moxifloxacin (35)	0.12	0.12	0.12
Sparfloxacin (40)	0.12–0.25	0.25	0.25
Trovafloxacin (40)	0.12–0.5	0.25	0.5

^aBold type indicates new agents.