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Thermo Scientific™ DrySpot™ E. coli O157 Latex Agglutination Test

Rapidly confirm E. coli serogroup O157 from colonies cultured on plated media by latex agglutination.

Supplier:  Thermo Scientific™ DR0120M

Catalog No. OXDR0120M

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The Oxoid DrySpot E. coli O157 test is a latex agglutination test for the identification of E. coli serogroup O157.

Use this dry latex test designed to demonstrate by slide agglutination, Escherichia coli strains possessing the O157 serogroup antigen.
The test is best used in conjunction with Sorbitol MacConkey Agar CM0813. E. coli O157:H7 strains do not ferment sorbitol and, therefore, give colorless colonies on this medium. The majority of E. coli isolates do ferment sorbitol and give characteristic pink colonies. Sorbitol MacConkey Agar should be used as the primary screen. Non-sorbitol fermenting colonies can then be tested with the latex reagents to determine whether the isolate belongs to the O157 serogroup and, therefore, a potential verotoxin-producing strain.
  • Pre-dispensed reagents eliminate extra steps for faster time to result
  • Simplified room temperature storage allows storage for up to two years
  • Blue latex particles are sensitized with reactive (positive) and non-reactive (negative) antibodies and dried onto reaction cards
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Remel™ and Oxoid™ products are now part of the Thermo Scientific brand, combining powerful manual, semi-automated and fully automated test products and a comprehensive line of media and diagnostic products to offer a complete, end-to-end solution to quickly deliver the products you need and the quality results your laboratory depends on.


2°C to 25°C
E. coli
40 reaction cards (3 tests/card), positive control, negative control, mixing paddles, bag clips
DrySpot E. coli O157 Test Kit
Latex Agglutination Test
120 Tests/Kit


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