TABLE 1.

Panel strain classification and characteristics

Classification and code no.	Resistance to H, E, and Sa	rpoB mutation	Treatment			Country of origin
			Regimenc	Outcome	Relapse
R1	None	Ser531Leu	Cat. 1	Failure	NAd	Bangladesh
R2	HE	Leu511Pro	Cat. 2	Failure	NA	Bangladesh
R3	HES	Leu511Pro	Cat. 2	Failure	NA	Bangladesh
R4	H	Asp516Tyr	Cat. 2	Failure	NA	Bangladesh
R5	HES	Asp516Tyr	Cat. 2	Failure	NA	Bangladesh
R6	HS	Asp516Tyr	Cat. 2	Failure	NA	Bangladesh
PR1	HES	Asp516Tyr	Unknown	Unknown	Unknown	DR Congo
PR2	HES	Leu533Pro	Unknown	Unknown	Unknown	Azerbaijan
PR3	None	Leu533Pro	Cat. 2	Cure	Yes	Bangladesh
PR4	H	His526Leu	Cat. 2	Cure	Yes	Bangladesh
PR5	None	His526Ser	Cat. 2	Cure	Yes	Bangladesh
PR6	HE	Leu511Pro	Cat. 2	Cure	Yes	Bangladesh
PR7	HE	Met515Ile Asp516Tyr	Cat. 2	Cure	Yes	Bangladesh
PR8	None	Ile572Phe	Cat. 2	Cure	No	Bangladesh
PS1	H	WTb	Cat. 2	Cure	Yes	Bangladesh
PS2	H	WT	Cat. 2	Failure	NA	Bangladesh
PS3	HES	WT	Cat. 2	Failure	NA	Bangladesh
S1	None	WT	Cat. 2	Cure	No	Bangladesh
S2	None	WT	Cat. 1	Cure	No	Bangladesh

^aH, isoniazid; E, ethambutol; S, streptomycin.

^bWT, wild type, no mutation found.

^cCat. 1, Cat. 2, WHO standard first-line treatment regimens: category 1 for new cases and category 2 for retreatment cases (see the text).

^dNA: not applicable.