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Published on: August 15, 2025
Practical issues in implementing whole-genome-sequencing in routine diagnostic microbiology
J W A Rossen1, A W Friedrich2, J Moran-Gilad3
1University of Groningen, University Medical Center Groningen, Department of Medical Microbiology, Groningen, The Netherlands; European Society for Clinical Microbiology and Infectious Diseases (ESCMID) Study Group for Genomic and Molecular Diagnostics (ESGMD), Basel, Switzerland.
Implementing bacterial whole genome sequencing (WGS) in clinical microbiology requires careful management of workflows, quality control, and cost. Further development is needed to optimize turnaround time and data analysis for WGS to fully transform patient care.
Area of Science:
- Clinical microbiology
- Genomic medicine
- Diagnostic technology
Background:
- Next-generation sequencing (NGS) is increasingly adopted in clinical microbiology.
- Integrating new technologies like NGS into routine workflows demands careful planning and management.
Purpose of the Study:
- To review practical aspects of implementing bacterial whole genome sequencing (WGS) in routine diagnostic laboratories.
- To discuss quality control, accreditation, and the place of WGS in the diagnostic hierarchy.
Main Methods:
- Literature review
- Expert opinion
Main Results:
- WGS integration requires addressing workflow, quality control, proficiency testing, and regulatory compliance.
- The balance between parallel processing on sequencers and the need for individual sample analysis is a key consideration.
- Cost and turnaround time are critical factors for WGS adoption in diagnostics.
Conclusions:
- Further workflow optimization, cost reduction, and streamlined data analysis are essential for WGS.
- WGS has the potential to revolutionize clinical microbiology into a genome-based, personalized diagnostic field.
- Maturity in WGS processes is necessary for its widespread use in patient and infection control management.
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