Infectious diseases are a leading cause of morbidity and death worldwide.1 High-throughput, culture-free methods, such as next-generation sequencing (NGS), are leading the way for how scientists perform infectious disease research and monitor epidemics and pandemics caused by viruses, bacteria, fungi, and parasites.2 Compared to previous technologies, NGS provides the speed, depth, and accuracy to identify pathogens, detect genetic changes, discover novel mechanisms and genes, and more.3 Illumina offers NGS strategies such as single-genome, multi-pathogen, and discovery sequencing methods with cutting-edge solutions to advance infectious disease research.
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Using NGS for infectious disease research
NGS workflows for infectious disease research
Sequencing for infectious disease research can be complex. Fortunately, different NGS-based methods are available to optimize the efficiency of your workflow and your results. Depending on your sample needs, single-genome, multi-pathogen, and discovery sequencing workflows can enable the full array of solutions for microbiology and infectious disease research applications.
Single-genome sequencing
Single-genome sequencing is an optimal method when sequencing a single pathogen or a known target. This approach can help you gain valuable genomic insights into species, strains, and genotypes of pathogens, as well as predictive insights into how pathogens could respond to antimicrobial agents. Single-genome sequencing can be accomplished through whole-genome sequencing of cultured isolates or targeted amplicon sequencing. Read more to see how each method can be used depending on the application.
Read how microbial whole-genome sequencing of cultured isolates allows for the mapping of genomes to characterize or identify organisms, complete assembly of known organisms, or even allow the comparison of genomes from separate samples.
Learn how scientists use targeted amplicon sequencing to analyze genetic variation in specific genomic regions while distinguishing microbial from non-microbial genomes. This method achieves accurate, on-target results with simplified workflows, allowing researchers to efficiently identify and characterize important microbes of interest, such as drug-resistant tuberculosis.
Multi-pathogen sequencing
Hybrid capture enrichment is an ideal solution when certain pathogens are suspected to be present. They allow for targeted or whole-genome sequencing of multiple organisms without requiring the high-read depth needed for shotgun sequencing of unenriched libraries. Read about specific examples using hybrid capture enrichment below.
Hybrid capture enrichment provides a comprehensive yet clinically relevant microbiology profile of acute upper respiratory infection. Read how researchers use hybrid capture to rapidly identify and characterize upper respiratory microorganisms with Explify Platform from Illumina. Learn more about targeted microbial sequencing
Precision metagenomics offers the potential for building effective tests to investigate pathogens in complex urinary tract infections (UTIs). In this article, investigators use Illumina Urinary Pathogen ID/AMR Panel to identify uropathogens using NGS-based methods.
Discovery sequencing
Discovery sequencing workflows are useful when aiming for truly unbiased analyses of primary samples. 16S rRNA sequencing or shotgun DNA/RNA sequencing enables analysis of the genetic material present in complex microbial communities using primary samples (eg, sputum and lower respiratory aspirates). Read about real-world reports to see how discovery sequencing is being used to characterize pathogens.
Read how 16S rRNA sequencing had the highest likelihood of identifying pathogens to decrease the number of antibiotics used in culture-negative infections.
Scientists demonstrate that shotgun metagenomic sequencing can potentially show better bacterial detection compared to traditional Sanger 16S sequencing. In this report, read about the contribution of shotgun metagenomics in the microbiological documentation for the etiological diagnosis of liver abscesses.
NGS Workflow Finder
Take the guesswork out of your next workflow. The NGS Workflow Finder provides personalized solution recommendations and resources so you can sequence with confidence.
Infectious disease eBooks
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Learn how NGS is contributing to drug-resistant TB (DR-TB) research. This informative eBook outlines the global implications of DR-TB, details how NGS is being used to advance the WHO goal of ending TB, and overviews Illumina targeted and whole-genome sequencing workflows that can be applied to TB genomic investigations and research.
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Download this eBook to learn how precision metagenomics is providing innovative solutions to rapidly detect and characterize pathogens through the power of next-generation sequencing.
Illumina offers technology and support to enhance your microbiology and infectious disease research. In this brochure, learn about NGS workflows and solutions based on your microbes of interest, sample types, and questions you want to answer with optimized end-to-end solutions.
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References
- World Health Organization. Mortality and global health estimates. who.int/data/gho/data/themes/mortality-and-global-health-estimates. Accessed September 13, 2024.
- Gwinn M, MacCannell D, Armstrong GL. Next-Generation Sequencing of Infectious Pathogens. JAMA. 2019;321(9):893–894. doi:10.1001/jama.2018.21669
- Liu, J., Zhang, Q., Dong, YQ. et al. Diagnostic accuracy of metagenomic next-generation sequencing in diagnosing infectious diseases: a meta-analysis. Sci Rep 2022; 12(1), doi: 10.1038/s41598-022-25314-y