Table 2.

Culture results for rifampin courses associated with a positive culture

	Blood N=1332	Urine N=8	CSF N=40	Total N=1380
Gram-positive
CoNS	649 (49%)	0	21 (53%)	670 (49%)
S. aureus	477 (36%)	0	13 (33%)	490 (36%)
Other*	105 (8%)	3 (38%)	5 (13%)	113 (8%)
Gram-negative
E. coli	3 (0.2%)	1 (13%)	0	4 (0.3%)
Other†	40 (3%)	0	0	40 (3%)
Fungus	41 (3%)	4 (50%)	0	45 (3%)
Other‡	17 (1%)	0	1 (3%)	18 (1%)

Abbreviations: CSF, cerebrospinal fluid; CoNS, coagulase-negative staphylococci; S. aureus, Staphylococcus aureus; E. coli, Escherichia coli.

^*Reported organisms included Enterococcus and group B Streptococcus; also includes those reported as gram-positive cocci for which speciation was not available.

^†Reported organisms include Acinetobacter, Citrobacter, Enterobacter, Klebsiella, Serratia, and Pseudomonas; also includes those reported as gram-negative rods for which speciation was not available.

^‡Organism not clearly specified or not clearly categorized (e.g., Mycoplasma).