TABLE 3.

Comparative detection of clinically important episodes by the VTI and 3D blood culture systems

Microorganism	No. of isolates recovered from:			P
	Both systems	VTI only	3D only
Gram-positive cocci
S. aureus	27	2	1	NSa
Coagulase-negative staphylococci	19	0	1	NS
S. pneumoniae	1	0	0	NS
Streptococcus and Enterococcus spp.b	19	3	1	NS
Gram-negative bacilli
Enterobacteriaceaec	45	4	6	NS
Nonfermentersd	6	3	4	NS
Anaerobic bacteria	6	5	3	NS
Yeastse	14	6	3	NS
All microorganisms	137	23	19	NS

^aNS, not significant (P > 0.05).

^bIncludes 10 Enterococcus faecium and 7 Enterococcus faecalis isolates, 4 viridans streptococci, and 2 beta- hemolytic streptococci.

^cIncludes 20 Escherichia coli, 10 Serratia marcescens, 9 Klebsiella pneumoniae, 6 Enterobacter cloacae, 3 Enterobacter aerogenes, 2 Klebsiella oxytoca, 2 Proteus mirabilis, 1 Enterobacter taylorae, 1 Salmonella enteritidis group D, and 1 Serratia liquefaciens isolate.

^dIncludes eight Pseudomonas aeruginosa, four Stenotrophomonas maltophilia, and one Ochrobactrum anthropi isolate.

^eIncludes seven Candida albicans, seven Candida glabrata, six Candida parapsilosis, two Candida tropicalis, and one Candida krusei isolate.