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Antimicrobial Agents and Chemotherapy, April 2009, p. 1660-1664, Vol. 53, No. 4
0066-4804/09/$08.00+0     doi:10.1128/AAC.01172-08
Copyright © 2009, American Society for Microbiology. All Rights Reserved.

Surveillance of Carbapenem-Resistant Pseudomonas aeruginosa Isolates from Puerto Rican Medical Center Hospitals: Dissemination of KPC and IMP-18 β-Lactamases{triangledown}

Daniel J. Wolter,1 Noha Khalaf,1,{dagger} Iraida E. Robledo,2 Guillermo J. Vázquez,2 Maria I. Santé,3 Edna E. Aquino,2 Richard V. Goering,4 and Nancy D. Hanson1*

Center for Research in Anti-Infectives and Biotechnology, Creighton University School of Medicine, Omaha, Nebraska,1 University of Puerto Rico School of Medicine, Department of Microbiology and Medical Zoology, San Juan, Puerto Rico,2 University of Puerto Rico School of Medicine, Department of Pathology and Laboratory Medicine, San Juan, Puerto Rico,3 Creighton University School of Medicine, Omaha, Nebraska4

Received 2 September 2008/ Returned for modification 23 October 2008/ Accepted 18 January 2009

During a 6-month period, 37/513 (7.2%) Pseudomonas aeruginosa isolates belonging to 13 pulsed-field gel electrophoresis (PFGE) groups from Puerto Rican hospitals were carbapenem nonsusceptible. Seven of 37 isolates from four PFGE groups carried blaIMP-18, and 25/37 isolates from seven PFGE groups carried blaKPC. The results indicated the clonal spread of blaKPC-positive P. aeruginosa isolates into several Puerto Rican hospitals and the dissemination of blaIMP-18 and blaKPC into genetically unrelated isolates.

* Corresponding author. Mailing address: Center for Research in Anti-Infectives and Biotechnology, Department of Medical Microbiology and Immunology, Creighton University School of Medicine, 2500 California Plaza, Omaha, NE 68178. Phone: (402) 280-5837. Fax: (402) 280-1875. E-mail: ndhanson{at}creighton.edu

{triangledown} Published ahead of print on 2 February 2009.

{dagger} Present address: Helwan University, Helwan, Egypt.

Antimicrobial Agents and Chemotherapy, April 2009, p. 1660-1664, Vol. 53, No. 4
0066-4804/09/$08.00+0     doi:10.1128/AAC.01172-08
Copyright © 2009, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

  • Lister, P. D., Wolter, D. J., Hanson, N. D. (2009). Antibacterial-Resistant Pseudomonas aeruginosa: Clinical Impact and Complex Regulation of Chromosomally Encoded Resistance Mechanisms. Clin. Microbiol. Rev. 22: 582-610 [Abstract] [Full Text]  
  • Akpaka, P. E., Swanston, W. H., Ihemere, H. N., Correa, A., Torres, J. A., Tafur, J. D., Montealegre, M. C., Quinn, J. P., Villegas, M. V. (2009). Emergence of KPC-Producing Pseudomonas aeruginosa in Trinidad and Tobago. J. Clin. Microbiol. 47: 2670-2671 [Abstract] [Full Text]  


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