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

TABLE 6.

Activity of amoxicillin-clavulanatea against 331 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 (78) 3 40 21 4 2 3 1 2 2
Bacteroides thetaiotaomicron (20) 2 9 5 1 1 2
Other Bacteroides spp. (32) 1 5 6 9 3 5 1 1 1
B. fragilis group (130) 4 47 36 18 6 8 3 1 5 2
Prevotella spp. (35) 26 3 3 3
Fusobacterium spp. (20) 16 1 1 1 1
Porphyromonas spp. (11) 10 1
Other gram-negative bacilli (2) 1 1
Veillonella spp. (5) 4 1
All gram-negative anaerobes (203) 61 53 40 22 7 9 3 1 5 2
Clostridium spp. (29) 13 3 6 2 3 1 1
Clostridium difficile (5) 5
Bifidobacterium spp. (7) 4 3
Eggerthella lenta (11) 6 2 1 2
Actinomyces spp. (1) 1
Propionibacterium spp. (9) 9
Gram-positive cocci (66) 53 7 3 2 1
All gram-positive anaerobes (128) 82 10 15 13 3 3 1 1
a

A fixed clavulanate concentration of 2 μg/ml was used.

b

For details, see the footnotes to Table 1.