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The susceptibility of isolates of Corynebacterium equi to antimicrobial drugs
Authors:J F PRESCOTT
Institution:Department of Veterinary Microbiology and Immunology, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
Abstract:Fifty-one isolates of Corynebacterium equi recovered from pigs and horses belonging to two capsular serotypes were tested for susceptibility to antimicrobial agents. No clear differences were detected in sensitivity between isolates of different sources or serotypes. All isolates were sensitive to <0.25 μg/ml of erythromycin and gentamicin. The following minimum inhibitory concentrations (MICs) of antimicrobial agents were determined for ≤90% of isolates: methicillin >16 μg/ml, clindamycin 1–2 μg/ml, tobramycin ≤1 μg/ml, cephalothin 8–64 μg/ml, kanamycin 2–8 μg/ml, amikacin ≤1–2 μg/ml, penicillin 2–≤4 μg/ml, ampicillin 2–8 μg/ml, trimethoprim-sulfa 4/76–32/608 μg/ml tetracycline 1–4 μg/ml and chloramphenicol 8–16 μg/ml.
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