Skip Navigation LinksTestOrderSTECIsolation


​Test Order – STEC Isolation for Enrichment Broth

Pre-Approval Required


Supplemental Information or Form

The submitting laboratory is encouraged to isolate STEC and submit suspect isolates along with broth. 

Form LAB 414 (PDF)​​ is required for submission of the broth and Form LAB 446 (PDF) is required for submission of suspect STEC isolates. 

Performed on Specimens From

Human source

Acceptable Sample/Specimen Type for Testing

GN or MAC Broth positive by Shiga toxin testing

Minimum volume required: 5 ml (broth)

Minimum Volume Required

5 ml (broth)

Storage & Preservation of Sample/Specimen Prior to Shipping

Store specimen at 4°C


For isolates accompanying broth, ship cultures on nonselective nutrient or similar agar in tubes with leak-proof screw cap closures.

Sample/Specimen Labeling

Testing subject to CLIA regulations require two patient identifiers on the specimen container and the test requisition.

Shipping Instructions which Include Specimen Handling Requirements

Ship at ambient temperature

Test Methodology

Isolation, Phenotypic Identification, PCR

Turnaround Time

15 to 45 days

Interferences & Limitations


Additional Information


MDL Points of Contact

MDL - Foodborne & Waterborne Diseases Section (510) 412-3796 

Monday-Friday 8 AM to 5 PM PT


Page Last Updated :