Employing Metagenomics Capture targeted next-generation sequencing for the etiological diagnosis of bloodstream infections
In brief
Metagenomic capture sequencing identifies bloodstream pathogens in 1.3 days, half culture time
In a 2024 retrospective cohort, the capture-targeted next-generation sequencing test delivered results in a median 1.3 days versus 2.7 days for standard blood cultures, while detecting more species and achieving a higher positive rate and sensitivity. The faster, broader detection suggests a useful adjunct for BSI work-up, though prospective validation is still needed.
- Journal
- Frontiers in cellular and infection microbiology (Q1)
- Published
- 18 August 2026
- Study design
- Cohort / observational study
- Evidence level
- Level 3, Low (CEBM 3b)
- Authors
- Chuyu Lao, Zihuan Li, Guanwen Lin, Congrong Li, Yuqi Wang
- PMID
- 42682792
- DOI
- 10.3389/fcimb.2026.1905007
Why clinicians should know about it
- Picked for Microbiology (medical) (paper of the day, 8 September 2026): Metagenomic capture NGS for bloodstream infection diagnosis
Abstract
BACKGROUND: Bloodstream infections (BSIs) represent a significant public health concern. Metagenomic Capture targeted next-generation sequencing technology, as a newly emerging method for pathogen detection, has been applied in the etiological diagnosis of various infectious diseases and demonstrates good diagnostic efficacy. However, there is relatively limited research on the diagnostic value of this technology for the etiological diagnosis of BSIs. METHODS: A comprehensive retrospective analysis was performed on patients suspected of having BSIs who were admitted to the Affiliated Guangdong Second Provincial General Hospital of Jinan University in 2024. These patients underwent both blood culture analysis and Metagenomic Capture targeted next-generation sequencing technology for diagnostic testing, and a detailed comparison of the results was conducted. RESULTS: It was found that the Metagenomic Capture-targeted next-generation sequencing method has a shorter time to result [1.33 (1.18 - 1.69) vs 2.73 (1.89 - 3.84) days, p < 0.001], more pathogenic microbial species detected, higher positive detection rate and higher sensitivity than blood culture. CONCLUSIONS: Metagenomic Capture targeted next-generation sequencing technology is a promising tool for pathogen identification in BSIs, offering substantial methodological advantages in terms of turnaround time, detection breadth, and sensitivity. These diagnostic performance characteristics support its potential utility in clinical microbiology practice.
Abstract as published, via PubMed.
For healthcare professionals. The summary is generated by AI from the published abstract, and the evidence level is assigned automatically from the study design on the Oxford CEBM hierarchy. Neither is medical advice. Read the full paper before changing practice.