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Shiga toxin-producing Escherichia coli

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Also known as: E. coli; E. coli O157; E. coli non-O157; STEC
Formal name: E. coli O157 culture; Shiga-like toxin by EIA; Stx gene detection by PCR
Related tests: O&P, Stool Culture

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At a Glance

Why Get Tested?

To determine if your gastrointestinal symptoms are due to an infection caused by Escherichia coli bacteria that produce Shiga toxin

When to Get Tested?

When you have acute diarrhea that is persistent, severe and/or bloody

Sample Required?

A fresh liquid or unformed stool sample that does not contain urine or water, collected in a clean dry container; a rectal swab may be collected from infants. The stool or rectal swab may be placed in transport media for delivery to the laboratory.

Test Preparation Needed?