Affiliation:
1. Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, Minnesota 55455
Abstract
Strains (115) of
Bacteroides fragilis
were identified at the subspecific level and were tested for susceptibility to ampicillin, cephalothin, chloramphenicol, clindamycin, penicillin, and tetracycline using an agar dilution technique. We tested the following strains:
B. fragilis
subsp.
distasonis
, 12;
B. fragilis
subsp.
fragilis
, 39;
B. fragilis
subsp.
ovatus
, 10;
B. fragilis
subsp.
thetaiotaomicron
, 32;
B. fragilis
subsp.
vulgatus
, 10; and
B. fragilis
subsp. “other,” 12. There were no marked differences in susceptibility between the subspecies. One strain of
B. fragilis
subsp.
thetaiotaomicron
had a minimal inhibitory concentration of 12.5 μg/ml for clindamycin, but all other strains were susceptible. All the strains were susceptible to chloramphenicol. Susceptibility to tetracycline was variable. Only a few strains were susceptible to the penicillins and cephalothin.
Publisher
American Society for Microbiology
Subject
Infectious Diseases,Pharmacology (medical),Pharmacology
Cited by
32 articles.
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