4.7 Article

Multicenter Evaluation of a New DNA Microarray for Rapid Detection of Clinically Relevant bla Genes from β-Lactam-Resistant Gram-Negative Bacteria

Journal

ANTIMICROBIAL AGENTS AND CHEMOTHERAPY
Volume 55, Issue 9, Pages 4457-4460

Publisher

AMER SOC MICROBIOLOGY
DOI: 10.1128/AAC.00353-11

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Funding

  1. Belgian Antibiotic Policy Coordination Committee (BAPCOC)
  2. Ministry of Public Health, Belgium
  3. European Community [2009-241742]
  4. INSERM, France
  5. Ministere de l'Education Nationale et de la Recherche [UPRES-EA3539]
  6. Universite Paris XI, Paris, France
  7. National Institutes of Health [AI072219, AI063517]
  8. Geriatric Research Education and Clinical Center

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A new commercial low-density microarray which identifies common extended-spectrum beta-lactamase plasmid-mediated cephalosporinase genes, as well as carbapenemase (bla(KPC) and bla(NDM)) genes, was evaluated. We tested 207 clinical and reference/collection isolates of the Enterobacteriaceae possessing different bla genes. Overall, the sensitivity and specificity of the microarray were 100% for the detection of the plasmid-mediated bla(AmpC), bla(KPC), and bla(NDM) genes using bla gene sequencing as the reference method.

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