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Updated: Jul 9, 2026

Visual Detection of Multiple Nucleic Acids in a Capillary Array
Published on: November 15, 2017
Rapid detection of NDM and VIM carbapenemase encoding genes by recombinase polymerase amplification and lateral
Abdulrahman K S Ayfan1,2, Joanne Macdonald3, Patrick N A Harris1,4
1UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Royal Brisbane and Women's Hospital Campus, Brisbane, Australia.
Abstract:
Carbapenemase-producing organisms (CPOs) pose a serious clinical threat and rapid detection tools are essential to aid in patient management. We developed rapid and simple molecular tests to detect blaNDM-type and blaVIM-type carbapenemase genes using recombinase polymerase amplification (RPA) combined with a lateral flow detection. The tests could provide results in approximately 15 min when using DNA extracts, with limits of detection of 9.2 copies/μl for the blaNDM-type assay and 7.5 copies/μl for blaVIM-type assay, and successfully detected all isolates harbouring the carbapenemase encoding genes in a panel of 57 isolates. These RPA tests may be suitable for use in low-resource settings to tailor rapid implementation of infection control precautions and antibiotic stewardship.
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