TABLE 3.

Distribution of 462 anaerobes and 1,145 aerobes isolated from DFIs

Organism	No. isolated	% Total aerobes or anaerobes	% in genus	% Total isolates	No. (%) of patientsa	No. (%) in pure culture
All gram-positive aerobes	920	80.3		57.1	394 (97.0)	63 (6.8)
Staphylococcus spp.	389	34.0		24.1	328 (80.8)
OSSAb	164	14.3	42.2	10.2	162 (39.9)	26 (15.9)
ORSAc	50	4.4	12.9	3.1	48 (11.8)	10 (20)
S. epidermidis (15 MRSEd strains)	87	7.6	22.4	5.4	81 (20.0)	8 (9.2)
S. lugdunensis	22	1.9	5.7	1.4	22 (5.4)	2 (9.1)
S. haemolyticus	22	1.9	5.7	1.4	20 (4.9)	1 (4.5)
S. simulans	12	1.0	3.1	0.7	12 (3.0)	2 (16.7)
Other Staphylococcus spp.	32	2.8	8.2	2.0	31 (7.6)	2 (9.4)
Streptococcus spp.	177	15.5		10.5	168 (41.1)
S. agalactiae	86	7.5	48.6	5.2	82 (20.2)	3 (3.5)
S. mitis group	41	3.6	23.2	2.5	38 (9.4)	2 (4.9)
S. milleri group	19	1.7	10.7	1.1	17 (4.2)
S. dysgalactiae subsp. equisimilis	18	1.6	10.2	1.1	18 (4.4)
Other Streptococcus spp., including S. pyogenes (n = 3)	13	1.1	7.3	1.1	13 (3.2)
Miscellaneous gram-positive cocci	27	2.4		1.7		1 (3.7)
Enterococcus spp.	155	13.5		9.6	145 (35.7)
E. faecalis	138	12.1	89.0	8.6	128 (31.5)	1 (0.7)
Other Enterococcus spp.	17	1.5	11.0	1.1	17 (4.2)	1 (5.9)
Corynebacterium spp.	116	10.1		7.2	115 (28.3)
C. amycolatum	49	4.3	42.2	3	46 (11.3)	1 (2.0)
C. striatum	30	2.6	25.9	1.9	29 (7.1)
Other Corynebacterium spp.	37	3.2	31.9	2.3	37 (9.1)	1 (2.7)
Dermabacter hominis	15	1.3	11.5	0.9	15 (3.4)
Actinomyces-Arcanobacterium group	13	1.1
Other gram-positive rods	25	2.2				1 (4.0)
All gram-negative aerobic organisms	225	19.7		14.0	145 (35.7)	3 (1.3)
Escherichia coli	20	1.7	8.9	1.2	20 (4.9)
Klebsiella spp.	25	2.2	11.1	1.6	25 (6.2)
Enterobacter cloacae	20	1.7	8.9	1.2	20 (4.9)	1 (5.0)
Enterobacter-Citrobacter-Pantoeae group	16	1.4	7.1	1.0	13 (3.2)	1 (6.3)
Serratia marcescens	14	1.2	6.2	0.9	14 (3.4)
Proteus-Providencia-Morganella group	28	2.4	12.4	1.7	25 (6.2)
Proteus mirabilis	24	2.1	10.7	1.5	23 (5.7)
Pseudomonas aeruginosa	40	3.5	17.8	2.5	35 (8.6)	1 (2.5)
Stenotrophomonas maltophilia	15	1.3	6.7	0.9	15 (3.7)
Alcaligenes faecalis group	10	0.9	4.4	0.6	9 (2.2)
Other nonfermenting gram-negative rods	13	1.1	5.8	0.8	13 (3.2)
All anaerobic organisms	462			28.7e	199 (49.0)	3 (0.6)
Bacteroides fragilis group	47	10.2		2.9	34 (8.4)
B. fragilis	19	4.1	40.4
B. caccae	2	0.4	4.3
B. distasonis	1	0.2	2.1
B. ovatus	5	1.1	10.6
B. stercoris	2	0.4	4.3
B. thetaiotaomicron	8	1.7	17.0
B. uniformis	5	1.1	10.6
B. vulgatus	5	1.1	10.6
Prevotella spp.	63	13.6		3.9	50 (12.3)
P. melaninogenica	11	2.4	17.2		10 (2.5)
Prevotella spp., pigmented	10	2.2	15.6
Prevotella bivia	26	5.8	41.3		26 (6.4)
Prevotella spp., nonpigmented	16	3.5	25.0
Porphyromonas spp.	52	11.3		3.3	42 (10.3)
P. asaccharolytica	29	6.3	55.8		28 (6.9)
P. somerae (formerly P. levii)	21	4.5	39.6		20 (4.9)
Other Porphyromonas spp.	2	0.4	3.8
Fusobacterium spp.	11	2.4		0.7	10 (2.5)
F. nucleatum	8	1.7	72.7
F. mortiferum-F. varium group	3	0.6	27.2
Other gram-negative species	13	2.8		0.8
Anaerobic gram-positive cocci	209	45.2		13.0	152 (37.4)
Finegoldia magna	102	22.1	48.8	6.4	99 (24.4)
Peptoniphilus asaccharolyticus	37	8.0	17.7		37 (9.1)
Peptostreptococcus anaerobius	15	3.2	7.2		14 (3.4)
Anaerococcus prevotii	13	2.8	6.2		13 (3.2)	1 (7.7)
Anaerococcus tetradius	9	1.9	4.3		9 (2.2)
Peptostreptococcus micros	6	1.3	2.9		6 (1.5)
Other species	27	5.8	12.9		27 (6.7)
Clostridium spp.	20	4.3		1.2	20 (4.9)
C. innocuum	1	0.2	5.0
C. clostridioforme group	3	0.6	15.0
C. perfringens	6	1.3	30.0
Other Clostridium spp.	10	2.1	50.0
Eubacterium group	17	3.7		1.1	17 (4.2)
Other gram-positive, non-spore-forming rodsf	30	6.5		1.9		2 (6.7)

^aA total of 406 patients had positive cultures.

^bOSSA, oxacillin-sensitive S. aureus.

^cORSA, oxacillin-resistant S. aureus.

^dMRSE, methicillin-resistant S. epidermidis.

^eOf a total of 1,607 isolates.

^fIncluding Lactobacillus spp., Propionibacterium spp., and Actinomyces spp.