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Antimicrobial Agents and Chemotherapy, April 1999, p. 940-943, Vol. 43, No. 4
0066-4804/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.

Comparison of Activities of Broad-Spectrum beta -Lactam Compounds against 1,128 Gram-Positive Cocci Recently Isolated in Cancer Treatment Centers

Daniel J. Diekema,1,* Stacy L. Coffman,1 Steven A. Marshall,1 Mondell L. Beach,1 Kenneth V. I. Rolston,2 and Ronald N. Jones1

Medical Microbiology Division, Department of Pathology, University of Iowa College of Medicine, Iowa City, Iowa,1 and Section of Infectious Diseases, University of Texas, M.D. Anderson Cancer Center, Houston, Texas2

Received 19 October 1998/Returned for modification 10 December 1998/Accepted 13 January 1999

We report the in vitro activities of broad-spectrum beta -lactam antimicrobials tested against 1,128 gram-positive pathogens recently isolated from cancer patients. Cefepime and imipenem were more active than ceftazidime and ceftriaxone against these organisms. Only vancomycin demonstrated reliable activity against oxacillin-resistant staphylococci, Enterococcus spp., and Corynebacterium spp. The spectrum of gram-positive organisms against which cefepime and imipenem have activity provides an advantage over ceftazidime as empiric therapy for cancer patients, potentially reducing the need for the empiric addition of glycopeptides.


* Corresponding author. Mailing address: Medical Microbiology Division, C606 GH, Department of Pathology, University of Iowa College of Medicine, Iowa City, IA 52242. Phone: (319) 356-2990. Fax: (319) 356-4916. E-mail: daniel-diekema{at}uiowa.edu.


Antimicrobial Agents and Chemotherapy, April 1999, p. 940-943, Vol. 43, No. 4
0066-4804/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.



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