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SARS-CoV-2 whole-genome sequencing using reverse complement PCR: For easy, fast and accurate outbreak and variant
Jordy P M Coolen1, Femke Wolters1, Alma Tostmann1
1Department of Medical Microbiology and Radboudumc Center for Infectious Diseases, Radboud university medical center, Nijmegen, The Netherlands.
Summary
A new whole genome sequencing (WGS) kit, EasySeq™ RC-PCR SARS-CoV-2 WGS, simplifies SARS-CoV-2 variant detection. This method aids public health in monitoring transmission and identifying new variants more efficiently.
Area of Science:
- Virology
- Genomics
- Molecular Biology
Background:
- The SARS-CoV-2 pandemic highlighted the need for rapid, large-scale mutation analysis.
- Current whole genome sequencing (WGS) methods for SARS-CoV-2 can be time-consuming and resource-intensive.
- Effective monitoring of viral transmission and emerging variants is crucial for public health response.
Purpose of the Study:
- To introduce and evaluate a novel, streamlined WGS technique for SARS-CoV-2 using reverse complement PCR (RC-PCR).
- To assess the utility of the EasySeq™ RC-PCR SARS-CoV-2 WGS kit for tracking viral diversity, transmission, and identifying variants of concern.
- To compare the efficiency and reliability of the new WGS method against existing techniques.
Main Methods:
- Development of the EasySeq™ RC-PCR SARS-CoV-2 WGS kit, integrating library preparation into a single PCR step.
- Application of the WGS technique to analyze SARS-CoV-2 samples from 173 patients and healthcare workers in 2020.
- Screening of SARS-CoV-2 positive samples from 2021 to identify mutations and lineages, with validation against Oxford Nanopore sequencing.
Main Results:
- The EasySeq™ RC-PCR SARS-CoV-2 WGS kit facilitated high-throughput screening, saving time and resources.
- The technique reliably confirmed outbreak clusters and identified previously unknown transmission links.
- Various SARS-CoV-2 variants of interest were detected and validated, demonstrating suitability for surveillance.
Conclusions:
- The EasySeq™ RC-PCR SARS-CoV-2 WGS kit offers a simplified and efficient approach for SARS-CoV-2 whole genome sequencing.
- This novel method supports public health organizations and hospitals in monitoring viral spread and identifying emerging variants.
- The technique is suitable for real-time surveillance and tracking of circulating SARS-CoV-2 variants.
