TABLE 2.

Characteristics of stock strains of M. szulgai

Stock strain	Specimen sourcea	Hospital unit	Date of positive culture (mo/day/yr)	Risk factorb	RAPD-PCR gel patternc	16S rRNA geno group cluster	Pigment
97TB2917	Sputum	4B	12/23/97	DM	ND	I	Yellow
CH2	CHDH				A-1	I	Yellow
CH3	CHDH				A-1	I	Yellow
CH4	CHDH				A-1	I	Yellow
Type strain	ATCC 35799				A-4	I	Yellow
CH1	CHDH				ND	II	Yellow
CH5	CHDH				A-2	II	Yellow
96TB1204	Sputum	4A	5/9/96	None	Unique	III	Yellow
97TB1869	Sputum	4B	7/30/97	Lung cancer	ND	ND	Yellow

^aCHDH, city of Houston Department of Health.

^bDM, diabetes mellitus.

^cRAPD-PCR gel patterns refer to the results shown in Fig. 2, as follows: pigmented M. szulgai strain patterns A-1 (lanes 3 to 5), A-2 (lanes 6 to 9), and A-4, (lane 2).

^dND, not done.