Skip Navigation LinksTestOrderEcoliShigellaID

Microbial Diseases Laboratory

Test Order – Escherichia coli and Shigella Identification, Serotyping and Shiga Toxin Detection

Pre-Approval Required


Supplemental Information or Form

Bacterial Culture for Identification Form LAB 446 (PDF) is required for submission of samples.

Performed on Specimens From

Human source

Acceptable Sample/Specimen Type for Testing

Pure Isolate

Minimum Volume Required


Storage & Preservation of Sample/Specimen Prior to Shipping

Store sample at ambient temperature


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

Phenotypic Identification, Genetic Identification, Serotyping, PCR

Turnaround Time

4 weeks

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 :