E. coli STEC
Shiga toxin-producing E. coli (STEC) testing
Detecting STEC is a key expertise within the Eurofins Food & Feed Testing laboratory network. This pathogen, an indicator of hygiene and sometimes responsible for severe infections, requires reliable analytical methods to ensure product safety. We offer a wide range of solutions to guarantee regulatory compliance and protect consumer health.
Key services
- Trace detection
- Quantification of E. coli (STEC)
- PCR rapid method for expedited release testing
Additional services
- Optimisation of control plans
- Crisis management support
Understanding E. coli STEC
STEC is naturally present in the intestinal microbiota of humans and animals. However, certain strains carry the stx gene, which is responsible for producing Shiga toxin. They can cause severe illness. Strains capable of causing clinical disease are often referred to as EHEC (Enterohemorrhagic E. coli). They can damage the kidneys, colon, nervous system, and brain, making them a major food safety concern in the UK and Europe.
Transmission and routes of contamination
The main sources of STEC transmission include raw or undercooked products such as:
- Undercooked minced meat
- Raw milk and unpasteurised dairy products
- Raw vegetables and sprouted seeds
- Unpasteurised juices (e.g. apple juice)
- Contaminated water or flour
Contamination often occurs during slaughter, milking, irrigation, runoff from ruminant farms, or during food handling and processing. Cattle and sheep are common carriers without symptoms. Drinking water can also be contaminated accidentally or due to insufficient treatment.
Legal bases and guidelines
- Commission Implementing Regulation (EU) 2023/7 (authorising the placing on the market of Lacto-N-tetraose produced by derivative strains of Escherichia coli BL21(DE3) as a novel food)
- Commission Implementing Regulation (EU) 2023/1582 (conditions of use of the novel food 3′-Sialyllactose sodium salt produced by derivative strains of Escherichia coli BL21(DE3))
- Commission Regulation (EC) No 2073/2005 (microbiological criteria for foodstuffs)
Get in touch
Would you like to find out more about our testing solutions, or do you need individual analytical support? Contact us today to get in touch with our experts.