Redefining Bloodstream Infection & Sepsis Diagnosis with cfDNA Metagenomics

Table Of Contents

  • The Diagnostic Challenge in Sepsis
  • What Is MetaSeq?
  • MetaSeq: Clinically Relevant Detection—Beyond Assumptions
  • Where MetaSeq Makes a Difference
  • How MetaSeq Works?
  • Why MetaSeq Is Clinically Important?
  • Diagnostic Superiority at a Glance
  • Test Details
  • Moving from Empiricism to Precision

Sepsis and bloodstream infections remain among the most challenging conditions to diagnose and
manage—especially in critically ill and immunocompromised patients. Despite advances in
diagnostics, clinicians are often left waiting for culture results or forced to rely on hypothesis-driven
tests that may miss the true causative pathogen. MetaSeq changes this paradigm.

The Diagnostic Challenge in Sepsis

Globally, sepsis accounts for an estimated 20 million childhood cases and 2.9 million deaths annually, with nearly 85% of sepsis-related deaths occurring in low- and middle-income countries. In India alone, sepsis prevalence in ICUs is reported at 56.4%, with 45% of infections being multidrug resistant.

Traditional diagnostic approaches face several limitations:

  • Low sensitivity of blood cultures
    Delayed turnaround times
  • Prior antibiotic exposure leading to false negatives
  • Limited panels that detect only suspected pathogens
  • When time is critical, these gaps can directly impact outcomes.

What Is MetaSeq?

MetaSeq is a next-generation, cell-free DNA (cfDNA), culture-free metagenomic NGS test designed
to detect microbial DNA directly from blood—without the need for culture.

Powered by NOSCENDO’s DISQVER®, MetaSeq combines a validated reference database with a
proprietary bioinformatics algorithm to deliver precise, clinically actionable pathogen detection
using cfDNA.

MetaSeq: Clinically Relevant Detection—Beyond Assumptions

MetaSeq provides clinically relevant insights into over 1,400 pathogens across all major pathogen
categories—bacteria, fungi, parasites, and DNA viruses—in a single test.

Unlike hypothesis-driven diagnostics, MetaSeq is:

  • Unbiased
  • Hypothesis-free
  • Culture-independent

This allows clinicians to identify pathogens that may be missed by conventional methods, especially in patients already on antimicrobials.

Where MetaSeq Makes a Difference

MetaSeq is ideally suited for suspected or confirmed cases of:

  • Bloodstream infections
  • Sepsis and septic shock
  • Endocarditis
  • Meningitis
  • Pneumonia
  • Osteomyelitis
  • Peritonitis and ascites
  • Febrile neutropenia
  • Fever of unknown origin

Its cfDNA-based approach reflects active, real-time infection, rather than colonization or historical exposure.

How MetaSeq Works?

The MetaSeq workflow is optimized for speed and accuracy:

  1. Peripheral blood collection (Streck tube)
  2. Cell-free DNA isolation
  3. Library preparation
  4. Rapid next-generation sequencing
  5. Advanced bioinformatic analysis
  6. Comprehensive, clinically interpretable report

This culture-free workflow significantly shortens time to actionable results.

Why MetaSeq Is Clinically Important?

The WHO Global Landscape Analysis recognizes DISQVER® as the only clinically approved NGS
platform for diagnosing invasive fungal diseases, highlighting its clinical robustness and leadership
in pathogen detection

With MetaSeq, clinicians can:

  • Confidently rule in or rule out bloodstream infections
  • Enable earlier, targeted therapy
  • Reduce unnecessary broad-spectrum antibiotic use
  • Support personalized treatment pathways
  • Reduce complications and hospital stay
  • Guide therapy in ICU, NICU, and immunocompromised patients

Diagnostic Superiority at a Glance

Compared to conventional blood culture and RT-PCR:

  • Detects 1,400+ pathogens in a single test
  • Higher sensitivity than blood culture
  • Hypothesis-free, unlike targeted PCR
  • Faster turnaround with culture-free NGS workflow
  • Focuses on active infection via cfDNA

Test Details

  • Test Name: MetaSeq (Powered by DISQVER®)
  • Sample Type: Peripheral blood (Streck tube)
  • Volume: 3 mL (paediatric/neonates) to 10 mL
  • Turnaround Time: 5 days
  • Pathogens Detected: Bacteria, fungi, parasites, DNA viruses*

*RNA viruses are not detected

Moving from Empiricism to Precision

In an era of rising antimicrobial resistance and complex infections, diagnostics must do more than
confirm suspicion—they must reveal the unexpected.

MetaSeq enables clinicians to move from empiric guesswork to precision-driven infection
management, supporting better decisions when every hour counts.

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Table Of Contents

  • The Diagnostic Challenge in Sepsis
  • What Is MetaSeq?
  • MetaSeq: Clinically Relevant Detection—Beyond Assumptions
  • Where MetaSeq Makes a Difference
  • How MetaSeq Works?
  • Why MetaSeq Is Clinically Important?
  • Diagnostic Superiority at a Glance
  • Test Details
  • Moving from Empiricism to Precision
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