Utility of Commercial Systems for Identification of Burkholderia cepacia Complex from Cystic Fibrosis Sputum Culture

Author:

Shelly Deborah Blecker1,Spilker Theodore2,Gracely Edward J.3,Coenye Tom4,Vandamme Peter4,LiPuma John J.2

Affiliation:

1. Clinical Microbiology Laboratory, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 191041;

2. Department of Pediatrics and Communicable Diseases, University of Michigan Medical School, Ann Arbor, Michigan 481092;

3. Department of Community and Preventive Medicine, MCP Hahnemann University, Philadelphia, Pennsylvania 191293; and

4. Laboratorium voor Microbiologie, Universiteit Gent, Ghent, Belgium4

Abstract

ABSTRACT Performances of several commercial test systems were reviewed to determine their relative levels of accuracy in identifying Burkholderia cepacia complex isolates recovered from cystic fibrosis sputum culture. Positive predictive values ranged from 71 to 98%; negative predictive values ranged from 50 to 82%. All systems misidentified B. cepacia complex. The species most frequently misidentified as B. cepacia was Burkholderia gladioli . These data support the results of previous studies that recommend confirmatory testing, including the use of DNA-based methods, for sputum culture isolates presumptively identified as B. cepacia .

Publisher

American Society for Microbiology

Subject

Microbiology (medical)

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