Guidance

Shiga toxin Escherichia coli scheme: recent intended results

Results from the external quality assessment (EQA) scheme for laboratories testing for Shiga toxin-producing Escherichia coli by molecular methods.

• From: Public Health England
• Published: 26 January 2016
• Last updated: 6 November 2020
  Show all updates

  1. 6 November 2020

     Added 'Shiga toxin Escherichia coli scheme: intended results for STX9 distribution sample'.

  2. 4 February 2020

     Added 'Shiga toxin Escherichia coli scheme: intended results for STX8 distribution sample'.

  3. 4 July 2019

     Added 'Shiga toxin Escherichia coli scheme: intended results for STX7 distribution sample'.

  4. 7 February 2019

     Added 'Shiga toxin Escherichia coli scheme: intended results for STX6 distribution sample'.

  5. 9 July 2018

     Updated with amended 'Shiga toxin Escherichia coli scheme: intended results for STX5 distribution sample'.

  6. 3 July 2018

     Added 'Shiga toxin Escherichia coli scheme: intended results for STX5 distribution sample'.

  7. 6 February 2018

     Added 'Shiga toxin Escherichia coli scheme: intended results for STX4 distribution sample'.

  8. 4 July 2017

     Added Shiga toxin Escherichia coli scheme: intended results for STX3 distribution sample.

  9. 7 February 2017

     Added intended results for STX2 distribution sample.

  10. 6 July 2016

      Added shiga toxin escherichia coli scheme: intended results for STX1 distribution sample.

  11. 26 January 2016

      First published.

This publication was withdrawn on 15 May 2025

This content is no longer up-to-date. For the most recent information, see the Food and Environment Proficiency Testing Unit (FEPTU) website.

Documents

Shiga toxin Escherichia coli scheme: intended results for STX9 distribution sample

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Shiga toxin Escherichia coli scheme: intended results for STX8 distribution sample

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Shiga toxin Escherichia coli scheme: intended results for STX7 distribution sample

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Details

This Shiga toxin-producing Escherichia coli EQA scheme focuses on raising awareness of:

• the molecular methods used
• the variations of the molecular methods used which can subsequently highlight differences in proficiency testing (PT) results obtained
• limitation of molecular methods available on the market
• updates in International Organisation for Standardisation (ISO) methods