Workflow: Rapid diagnosis of lower respiratory infection using nanopore-based metagenomic sequencing
Date: 17th April 2019
Lower respiratory tract infections are the leading cause of death from infectious disease worldwide, causing three million deaths in 2016. A wide range of pathogens cause these infections, making quick diagnosis and prescribing decisions a challenge. Culture is required to diagnose bacterial infections and results can be slow or uncertain, resulting in over-use of broad spectrum antibiotics. Researchers at the Quadram Institute of Bioscience in Norwich, and colleagues, used nanopore sequencing to explore a metagenomic sequencing approach directly from patient respiratory samples to facilitate quicker identification of bacterial pathogens and accurate detection of resistance genes.
Using the MinION, the researchers developed a pipeline that was capable of removing up to 99.99% of host nucleic acids from the clinical samples, was 96.6% concordant with culture in terms of pathogen detection, and could accurately detect resistance genes within six hours.