TABLE 3.

Trehalase and maltase test results for 217 yeast isolates tested in two laboratories^a

Species	Total	No. of positive reactions obtained with yeast colonies grown on the indicated agarb
		Laboratory A						Laboratory B
		CandiSelect		Sabouraud bioMérieux		Candida ID		Candida ID		Sabouraud Oxoid		Sabouraud Difco
		T+M−	T+M+	T+M−	T+M+	T+M−	T+M+	T+M−	T+M+	T+M−	T+M+	T+M−	T+M+
C. glabrata	50	48	1	48	1	48	1	49	1	49	1	49	1
C. famata	15	0	0	0	4	0	0	0	1	0	12	2	13
C. guilliermondii	19	1	2	0	1	1	0	0	4	1	17	1	17
C. inconspicua	7	0	0	0	3	0	0	0	2	0	5	1	5
C. kefyr	2	0	0	0	0	0	0	0	0	1	0	1	0
C. krusei	18	0	0	0	0	0	0	0	0	1	3	10	5
C. lipolytica	1	0	0	0	0	0	0	0	0	0	1	0	1
C. lusitaniae	10	0	0	0	1	0	0	1	1	3	5	5	5
C. norvegensis	3	0	0	0	0	0	0	0	0	0	3	0	3
C. parapsilosis	68	1	2	2	2	0	0	1	2	1	32	5	57
C. tropicalis	24	0	5	0	1	0	5	1	0	11	2	6	6
Test sensitivity (%)		96.0		96.0		96.0		98.0		98.0		98.0
Test specificity (%)		98.8		98.8		99.4		98.2		89.2		81.4

^aOnly C. glabrata isolates should give positive trehalase test results and negative maltase test results.

^bT+M−, trehalase positive, maltase negative; T+M+, trehalase positive, maltase positive.