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Implementation

National Health Laboratory ServiceRef: https://www.nhls.ac.za/priority-programmes/tb-genexpert/implementation/

Official source

Source domain: nhls.ac.za

Collected on 17 June 2026

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What this means

The document describes the implementation of the GeneXpert MTB/Rif (GX) technology by the National Health Laboratory Service (NHLS) to improve TB detection and rifampicin resistance testing. It explains the assay's capabilities, including rapid results from sputum and high specificity/sensitivity, and outlines phased rollout planned at multiple sites across districts. It notes that the rollout is at the request of the National Department of Health and details phases of capacitation and transition from smear microscopy to GX testing.

What this document offers

Read out of this document by Govermate's AI, in its own words. Each one quotes the line it came from — confirm on the official source before acting.

research implementation opportunityOngoing

Capacitation of Gates Foundation trial clusters

Laboratories involved in the Gates Foundation trial — both Xpert and control clusters — are receiving full capacitation to implement GeneXpert testing, supporting evaluation of the technology in high and low prevalence settings.

Who it is for
laboratory staff in Gates Foundation trial sites
How to act on it
Join the trial implementation process through NHLS coordination and follow established training protocols
Show the line this came from
3.a Gates Xpert Full capacitation of laboratories in Gates Foundation trial Xpert clusters, i.e. high prevalence sites 3.b Gates Control Full capacitation of laboratories in Gates Foundation trial Control clusters, i.e. low prevalence sites.
regional lab enhancement opportunityOngoing

Capacitation of one high test volume laboratory in remaining health districts

One high-volume laboratory in each of the remaining health districts will be fully capacitated to use GeneXpert MTB/Rif technology, expanding national coverage beyond high burden areas.

Who it is for
laboratory staff in non-high burden health districts
How to act on it
Be selected for capacitation and participate in NHLS-led training and equipment deployment
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3.c Minister Capacitation of one high test volume laboratory in the remaining health districts.
national health system scaling opportunityOngoing

Full capacitation of all health districts

The final phase involves bringing GeneXpert MTB/Rif testing to every health district in South Africa, ensuring nationwide access to rapid TB and drug resistance testing.

Who it is for
all NHLS laboratories across South Africa
How to act on it
Complete required training, infrastructure upgrades, and quality systems to become a fully operational GeneXpert site
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3.d All Remaining Full capacitation of all health districts.
diagnostic test serviceOngoing

GeneXpert MTB/Rif testing service

The National Health Laboratory Service offers GeneXpert MTB/Rif testing for tuberculosis detection and rifampicin resistance screening. This rapid molecular test provides results in about two hours from raw sputum samples, improving detection rates especially in smear-negative cases. The service is available at designated laboratories across South Africa following phased implementation.

Who it is for
patients suspected of having tuberculosis, healthcare providers referring samples, public health clinics
How to act on it
Submit sputum samples to participating NHLS laboratories that have implemented GeneXpert technology
Show the line this came from
Testing officially started on 1st October 2011.
lab network expansion opportunityOngoing

Full capacitation of high burden districts

All laboratories within the nine high burden districts are being fully capacitated to implement GeneXpert MTB/Rif testing, enabling widespread access to rapid TB and drug resistance detection.

Who it is for
laboratory staff and managers in high burden districts
How to act on it
Engage with NHLS and NDOH support teams to complete training, quality assurance, and system integration
Show the line this came from
2.b Full Capacitation of High Burden Districts Full capacitation of all laboratories in the nine high burden districts.

Facts

Reference

https://www.nhls.ac.za/priority-programmes/tb-genexpert/implementation/

Key Takeaways

  • organization: National Health Laboratory Service (NHLS)
  • technology: GeneXpert MTB/Rif (GX) cassette-based molecular test
  • purpose: improve TB detection and rifampicin resistance testing
  • performance: specificity 99.2%, sensitivity 98.2% in smear-positive, 72.5% in smear-negative culture-positive
  • rollout: phased implementation across sites/districts
  • phases: Phase 1 placement 24 March 2011 at 25 sites; Phase 2a full capacitation of Phase 1 sites; Phase 2b full capacitation of high burden districts
  • stakeholder: National Department of Health (NDOH) request
  • outcome: increased sensitivity in smear-negative cases and early DR-TB detection