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Volume 8, Number 1—January 2002

Dispatch

Nosocomial Endocarditis Caused by Corynebacterium amycolatum and Other Nondiphtheriae Corynebacteria

Karen L. Knox*Comments to Author  and Alison H. Holmes†
Author affiliations: *St. George’s Hospital, London, United Kingdom; †Imperial College School of Medicine, Hammersmith Hospital, London, United Kingdom

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Table 2

Identification and antibiograms of the Corynebacteria species in three cases of endocarditis, London

Organism: gram-positive rod, nonmotile, catalase positive Colonial morphology Further identification Antibiotic sensitivity pattern (Stokes plate)
Sensitive Resistant
Corynebacterium amycolatum
Case 1 Dry, graya Coryne API
GLCb Rif, Teic, Vanc Cip, Ery, F, Gent, Pen, Trim
C. striatum
Case 2 Moist, white, smootha Coryne API Cip, Ery, F, Gent, Rif, Trim, Teic, Vanc Pen
C. jeikeiun
Case 3 Gray, nonhemolytica
(aerobic growth) Coryne API Rif, Teic, Vanc Cip, Ery, F, Gent, Pen, Trim

aHorse blood agar at 37°C.

bAPI = analytical profile index; GLC = gas liquid chromatography; Cip = ciprofloxacin; Ery = erythromycin; F = fucidin; Gent = gentamicin; Pen = penicillin; Rif = rifampicin; Teic = teicoplanin; Trim = Trimethoprim; Vanc = vancomycin.

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