TABLE 2.

Summary of differential characteristics of the strains^a

Characteristic	Our data (% positive) for cluster:			Data from references 5 and 9				Data from API 20 Strep chart (% positive)
	1 (n = 3)	2a (n = 1)	2b (n = 17)	S. Infantarius	S. bovis biotype II/1	S. bovis biotype II/2	S. gallolyticus	Typical biotype I	S. bovis biotype II/1	S. bovis biotype II/2
Production of:
Beta-glucosidase	100	100	100b	v/+	+	+	+	NDe	ND	ND
Beta-glucuronidase	0	0	100	−	−	+	−	4	1	88
Alpha-galactosidase	100	0	100	+	+	v	+	71	86	85
Beta-galactosidase	0	100	100	−	−	+	−	14	17	94
Beta-mannosidase	0	0	100b	−	−	+	v	ND	ND	ND
Acid from:
Trehalose	0	100	100	−	−	+	+	90	30	99
Raffinose	100d	100d	100	v	+	v	+	90	99	72
Inulin	0	0	0	−	+	−	+	63	61	13
Starchc	fast	fast	slow	+/v	+	−	+	100	73	40
Glycogen	33	100	0	+/−	+	−	+	90	65	18
Pullulans	33	100	0b	v/−	−	−	+	ND	ND	ND
Melibiose	0	0	20b	v/−	+	−	−	ND	ND	ND
Mannitol	0	0	0b	−	−	−	+	86	0	0

^aOur data, which were obtained by testing our strains on both the API 20 Strep and API 32 Strep systems, is shown in the first group of columns. It is contrasted with data in subsequent columns from references 5 and 9 combined and the API 20 Strep chart. 

^bOnly 11 strains tested. 

^cWith extended incubation (1 week), all strips became positive: fast, positive in 24 to 48 h; slow, positive in >48 h. 

^dPositive on API 20 Strep but negative on the rapid ID 32 Strep. 

^eND, not in API 20 Strep database.