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. 2003 Nov;47(11):3667–3671. doi: 10.1128/AAC.47.11.3667-3671.2003

TABLE 7.

Activity of amoxicillin-clavulanatea against 310 anaerobesb

Bacterium (no. of isolates) % of strains inhibited by amoxicillin-clavulanate at concn (μg/ml) of:
≤0.06 0.125 0.25 0.5 1 2 4 8 16 32 64 >64
Bacteroides fragilis (77) 13 53 4 2 3 1 1
Bacteroides thetaiotaomicron (8) 2 2 3 1
Other Bacteroides spp. (35) 1 1 14 11 5 2 1
B. fragilis group (120) 1 16 69 18 7 5 2 2
Prevotella spp. (20) 9 2 3 4 2
Fusobacterium spp. (20) 10 2 1 6 1
Porphyromonas spp. (9) 9
Bilophila wadsworthia (19) 5 4 3 2 2 2 1
Veillonella spp. (14) 3 4 1 3 2 1
All gram-negative anaerobes (202) 36 13 24 84 25 9 7 2 2
Clostridium spp. (25) 17 3 1 2 1 1
Clostridium difficile (41) 18 19 4
Bifidobacterium spp. (5) 1 4
Eggerthella lenta (1) 1
Eubacterium aerofaciens (4) 4
Propionibacterium spp. (12) 1 8 2 1
Gram-positive cocci (20) 16 3 1
All gram-positive anaerobes (108) 40 18 4 21 20 4 1
a

A 2:1 ratio of amoxicillin to clavulanate was used.

b

For details, see the footnotes to Table 1.