Guidance
Shiga toxin Escherichia coli scheme: sample schedule
Updated 10 March 2022
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Shiga toxin-producing Escherichia coli scheme
Food microbiology examinations
Sample schedule for 1 April 2022 to 31 March 2023
| Distribution number | Sample numbers | Dispatch date | Date results due by | Examinations required (samples can only be examined using molecular methods) |
|---|---|---|---|---|
| STX12 | STX023 STX024 | 4 Jul 2022 | 29 Jul 2022 | Detection of the major virulence genes associated with Escherichia coli serogroups O157, O111, O26, O103, O145 and O104:H4 (STEC) Includes detection of stx-coding genes and the presence of the intimin-coding gene eae |
| STX13 | STX025 STX026 | 30 Jan 2023 | 24 Feb 2023 | Detection of the major virulence genes associated with Escherichia coli serogroups O157, O111, O26, O103, O145 and O104:H4 (STEC) Includes detection of stx-coding genes and the presence of the intimin-coding gene eae |