TABLE 1.

Critical concentrations for susceptibility testing using agar proportion and PMA-qPCR^a

Antimicrobial agent	Critical concn (μg/ml) for susceptibility testing by:
	M7H10 agar proportion (MIC range)	PMA-qPCR with M7H9 broth
Isoniazid	0.2 (0.03-32)	0.1
Rifampin	1 (0.03-32)	1
Ethambutol	5 (0.31-10)	5
Streptomycin	2 (0.31-10)	1
Amikacin	5 (0.31-10)	1
Kanamycin	5 (0.31-10)	1
Capreomycin	10 (0.31-10)	2.5
Ofloxacin	2 (0.125-8)	2
Moxifloxacin	2 (0.125-8)	0.25
Ethionamide	5 (0.31-10)	5
p-Aminosalicylic acid	2 (0.125-8)	2
Linezolid	1 (0.125-8)	1
Cycloserine	30 (0.47-30)	30
Pyrazinamideb	100 (ND)c	100

^aBased on data from reference 21.

^bMGIT (pH 5.9).

^cND, not done.