Shiga toxin-producing Escherichia coli (STEC) case definition

This document contains the case definitions for Shiga toxin-producing Escherichia coli which is nationally notifiable within Australia. This definition should be used to determine whether a case should be notified.

Page last updated: 23 August 2016

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Surveillance case definition V1.1

Version
Status/changes
Last reviewed
Endorsement date
Implementation date

1.1

Title and throughout

  • Removal of vero toxin producing Escherichia coli (VTEC).

Laboratory definitive evidence

  • Removal of ‘isolation of Shiga toxin or vero toxin from a clinical isolate of E.coli’.

Replacement of ‘raw bloody diarrhoea’ with ‘faeces’ for detection of genes encoding Shiga toxins.

CDWG April 2016 CDNA July 2016 1 July 2016
1.0 Initial CDNA case definition (2004)      

Reporting

Only confirmed cases should be notified.

Confirmed case

A confirmed case requires laboratory definitive evidence only.

Laboratory definitive evidence

  1. Isolation of Shiga toxigenic Escherichia coli from faeces

OR

  1. Detection of the gene(s) encoding the Shiga toxins (stx1 and/or stx2) in faeces or from a clinical isolate of Escherichia coli.

Note: Where STEC is isolated or detected in the context of haemolytic uraemic syndrome (HUS), it should be notified as STEC and HUS.

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