Medium reagent ST1 series
for microbiologyfor food productsEscherichia coli

Medium reagent - ST1 series - CHROMagar - for microbiology / for food products / Escherichia coli
Medium reagent - ST1 series - CHROMagar - for microbiology / for food products / Escherichia coli
Medium reagent - ST1 series - CHROMagar - for microbiology / for food products / Escherichia coli - image - 2
Medium reagent - ST1 series - CHROMagar - for microbiology / for food products / Escherichia coli - image - 3
Medium reagent - ST1 series - CHROMagar - for microbiology / for food products / Escherichia coli - image - 4
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Characteristics

Type
reagent medium
Applications
for microbiology, for food products
Micro-organism
Escherichia coli, Shigella
Storage temperature

15 °C, 30 °C
(59 °F, 86 °F)

Description

An increasing and worrisome number of studies have lately shown that, non-O157 ShigaToxin-producing E. coli (STEC) have been responsible for foodborne poisoning outbreaks. The CDC has also reported warnings about this potential risk: “ Disease caused by Shiga toxin-producing Escherichia coli (STEC) ranges from self-limiting diarrhea to hemorrhagic colitis and hemolytic uremic syndrome (HUS). Serotype O157:H7, the most frequently implicated STEC causing hemorrhagic colitis and HUS, has been isolated from large foodborne outbreaks, as well as sporadic cases, in North America and abroad. However, 60 STEC serotypes have been implicated in diarrheal disease, and several non-O157:H7 serotypes have been implicated as the cause of foodborne outbreaks and HUS in the United States, Europe, and Australia. Studies from Canada, Europe, Argentina, and Australia suggest that non- O157:H7 STEC infections are as prevalent, or more so, than O157:H7 infection.” CDC report « Prevalence of Non-O157:H7 Shiga Toxin-Producing Escherichia coli in Diarrheal Stool Samples [..» Therefore, several regulatory authorities urge worldwide food industry to implement measures to control the absence of such organisms in their production. In many cases, laboratories have limited their search for pathogenic E. coli to the common O157 serotype. This is due, among other reasons, to the fact that there were no available selective culture media for non-O157 E. coli. CHROMagar™ STEC is designed to fill this gap: detection, as mauve colonies, of not only the classical STEC O157, but also many other serotypes.

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