Trends in Antimicrobial Resistance of Acinetobacter baumannii Isolates from a Metropolitan Detroit Health System

Author:

Reddy Tara1,Chopra Teena1,Marchaim Dror1,Pogue Jason M.2,Alangaden George1,Salimnia Hossein3,Boikov Dina3,Navon-Venezia Shiri4,Akins Robert3,Selman Philip3,Dhar Sorabh1,Kaye Keith S.1

Affiliation:

1. Division of Infectious Diseases, Detroit Medical Center, Wayne State University, Detroit, Michigan

2. Department of Pharmacy Services, Sinai-Grace Hospital, Detroit Medical Center, Wayne State University, Detroit, Michigan

3. Department of Clinical Microbiology, Detroit Medical Center, Detroit, Michigan

4. Division of Epidemiology, Tel-Aviv Sourasky Medical Center, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel

Abstract

ABSTRACT A phenotypic and genotypic analysis of Acinetobacter baumannii was conducted from 2003 to 2008 in Detroit, MI. The incidence of A. baumannii increased from 1.7 to 3.7/1,000 patient days during the study period. Susceptibility to ampicillin-sulbactam and imipenem decreased from ∼90% to ∼40%. Genotyping revealed polyclonality, suggesting either emergence of multiple resistant strains or spread of a common genetic element. The sharp rise mandates major multidisciplinary interventions to optimize management of this multidrug-resistant pathogen.

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Pharmacology (medical),Pharmacology

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