TABLE 3.

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

OrganismNo. isolated% Total aerobes or anaerobes% in genus% Total isolatesNo. (%) of patientsaNo. (%) in pure culture
All gram-positive aerobes92080.357.1394 (97.0)63 (6.8)
    Staphylococcus spp.38934.024.1328 (80.8)
        OSSAb16414.342.210.2162 (39.9)26 (15.9)
        ORSAc504.412.93.148 (11.8)10 (20)
        S. epidermidis (15 MRSEd strains)877.622.45.481 (20.0)8 (9.2)
        S. lugdunensis221.95.71.422 (5.4)2 (9.1)
        S. haemolyticus221.95.71.420 (4.9)1 (4.5)
        S. simulans121.03.10.712 (3.0)2 (16.7)
        Other Staphylococcus spp.322.88.22.031 (7.6)2 (9.4)
    Streptococcus spp.17715.510.5168 (41.1)
        S. agalactiae867.548.65.282 (20.2)3 (3.5)
        S. mitis group413.623.22.538 (9.4)2 (4.9)
        S. milleri group191.710.71.117 (4.2)
        S. dysgalactiae subsp. equisimilis181.610.21.118 (4.4)
        Other Streptococcus spp., including S. pyogenes (n = 3)131.17.31.113 (3.2)
    Miscellaneous gram-positive cocci272.41.71 (3.7)
    Enterococcus spp.15513.59.6145 (35.7)
        E. faecalis13812.189.08.6128 (31.5)1 (0.7)
        Other Enterococcus spp.171.511.01.117 (4.2)1 (5.9)
    Corynebacterium spp.11610.17.2115 (28.3)
        C. amycolatum494.342.2346 (11.3)1 (2.0)
        C. striatum302.625.91.929 (7.1)
        Other Corynebacterium spp.373.231.92.337 (9.1)1 (2.7)
    Dermabacter hominis151.311.50.915 (3.4)
    Actinomyces-Arcanobacterium group131.1
    Other gram-positive rods252.21 (4.0)
All gram-negative aerobic organisms22519.714.0145 (35.7)3 (1.3)
    Escherichia coli201.78.91.220 (4.9)
    Klebsiella spp.252.211.11.625 (6.2)
    Enterobacter cloacae201.78.91.220 (4.9)1 (5.0)
    Enterobacter-Citrobacter-Pantoeae group161.47.11.013 (3.2)1 (6.3)
    Serratia marcescens141.26.20.914 (3.4)
    Proteus-Providencia-Morganella group282.412.41.725 (6.2)
    Proteus mirabilis242.110.71.523 (5.7)
    Pseudomonas aeruginosa403.517.82.535 (8.6)1 (2.5)
    Stenotrophomonas maltophilia151.36.70.915 (3.7)
    Alcaligenes faecalis group100.94.40.69 (2.2)
    Other nonfermenting gram-negative rods131.15.80.813 (3.2)
All anaerobic organisms46228.7e199 (49.0)3 (0.6)
    Bacteroides fragilis group4710.22.934 (8.4)
        B. fragilis194.140.4
        B. caccae20.44.3
        B. distasonis10.22.1
        B. ovatus51.110.6
        B. stercoris20.44.3
        B. thetaiotaomicron81.717.0
        B. uniformis51.110.6
        B. vulgatus51.110.6
    Prevotella spp.6313.63.950 (12.3)
        P. melaninogenica112.417.210 (2.5)
        Prevotella spp., pigmented102.215.6
        Prevotella bivia265.841.326 (6.4)
        Prevotella spp., nonpigmented163.525.0
    Porphyromonas spp.5211.33.342 (10.3)
        P. asaccharolytica296.355.828 (6.9)
        P. somerae (formerly P. levii)214.539.620 (4.9)
        Other Porphyromonas spp.20.43.8
    Fusobacterium spp.112.40.710 (2.5)
        F. nucleatum81.772.7
        F. mortiferum-F. varium group30.627.2
    Other gram-negative species132.80.8
    Anaerobic gram-positive cocci20945.213.0152 (37.4)
        Finegoldia magna10222.148.86.499 (24.4)
        Peptoniphilus asaccharolyticus378.017.737 (9.1)
        Peptostreptococcus anaerobius153.27.214 (3.4)
        Anaerococcus prevotii132.86.213 (3.2)1 (7.7)
        Anaerococcus tetradius91.94.39 (2.2)
        Peptostreptococcus micros61.32.96 (1.5)
        Other species275.812.927 (6.7)
    Clostridium spp.204.31.220 (4.9)
        C. innocuum10.25.0
        C. clostridioforme group30.615.0
        C. perfringens61.330.0
        Other Clostridium spp.102.150.0
    Eubacterium group173.71.117 (4.2)
    Other gram-positive, non-spore-forming rodsf306.51.92 (6.7)
  • a A total of 406 patients had positive cultures.

  • b OSSA, oxacillin-sensitive S. aureus.

  • c ORSA, oxacillin-resistant S. aureus.

  • d MRSE, methicillin-resistant S. epidermidis.

  • e Of a total of 1,607 isolates.

  • f Including Lactobacillus spp., Propionibacterium spp., and Actinomyces spp.