University of Pennsylvania Medical Center Guidelines for Antibiotic Use

Antimicrobial Susceptibilities of Obligately Anaerobic Bacteria Bacterial Isolates Collected in 2014

% Susceptible - Etest, CLSI M11-A8 and M100-S24 guidelines

Bacterium No. Tested Pen G A/C Mero Metro Clinda
 Breakpoint    ≤0.5 ≤4/2 ≤4 ≤8 ≤2
Bacteroides fragilis 22 NT* 95 95 100 5
Bacteroides ovatus 10 NT* 55 91 100 0
Bacteroides fragilis grp other than B. fragilis or B. ovatus 16 NT* 88 100 100 13
Clostridium spp. 11 91 NT NT 100 36
Finegoldia magna 14 100 NT NT NT 57
Prevotella spp.

15

NT 100 100 100 60
Fusobacterium spp. 12 100 100 100 100 83
Propionibacterium acnes 24 100 NT NT NT* 71
Propionibacterium spp. other than P. acnes 6 6/6 NT NT NT 5/6
Parvimonas micra 14 100 NT NT NT 64
Peptoniphilus asaccharolyticus 10 100 NT NT NT 50
Veillonella spp. 17 18 100 100 100 59

Pen G - Penicillin G, A/C - Amoxicillin/clavulanate, Mero - Meropenem, Metro - Metronidazole, Clinda - Clindamycin, NT - not tested,

*, resistance common to this drug for this bacterium and drug not tested

 

 

 

10/27/14 P. Edelstein

older data for 2009-2010, 2007-2008, 2006, 2004 and 2001

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