Abstract
Background: The correct identifying of pathogenic Burkholderia spp. using available commercial biochemical systems is a certain problem due to metabolic plasticity and variable enzymatic profile of isolates. Objectives: The current study aimed at using specific PCR and conventional multi-locus sequence typing (MLST) scheme to confirm the uncertain identification results for Burkholderia cepacia clinical isolate. Methods: Multilocus species-specific PCR and MLST profiling of high-throughput sequencing data have been used to clarify the varied results of biochemical identification of the strain. Results: The strain isolated from a patient with septicemia was initially identified as B. pseudomallei by Vitek 2 GN system but has an uncharacteristic antimicrobial resistance pattern and colony morphology. A species-specific multilocus PCR and whole-genome sequence profiling, according to the MLST scheme, allowed to identify an isolate as B. cepacia. Conclusions: The obtained results demonstrate the preference of molecular tests for correct identifying of pathogenic Burkholderia, considering that misidentification of those may lead to improper treatment or increase of biosafety risk.
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