![]() ![]() Symptoms usually last for 4 to 7 days but can be longer. The incubation period is usually between 2 to 4 days ( 3) but can be from 1 to 10 days. STEC can cause gastrointestinal symptoms (including diarrhoea which is often blood-stained), abdominal pain, nausea and vomiting. The presence of stx2 (specifically stx2a) is more likely to cause severe disease ( 1), ( 2). STEC can produce stx1 (4 subtypes 1a–1d) and stx2 (7 subtypes stx2a–2g). coli characterised by the presence of the Shiga toxin gene ( stx). ![]() coli ( VTEC), are a group of zoonotic, foodborne pathogenic E. coli ( STEC), also known as verocytotoxin producing E. ![]() UK SMIs should be used in conjunction with other relevant UK SMIs. ![]() Some biochemical tests may not be done routinely in laboratory except in cases where confirmation by an alternative technique is required or automated methods are not available. This UK SMI includes both biochemical tests and automated methods for the identification of microorganisms. These strains are associated with a wide spectrum of disease including haemolytic uraemic syndrome ( HUS). This UK Standards for Microbiology Investigations (UK SMI) document describes the identification of presumptive Shiga toxin-producing Escherichia coli O157 ( STEC O157) isolated from faeces. View scientific information related to UK SMIs. View general information related to UK SMIs. *Reviews can be extended up to 5 years where appropriate 1. Whole document has been placed into a new templateĬhanged from ‘Identification of vero toxin-producing Escherichia coli including Escherichia coli O157’ to ‘Identification of Shiga toxin-producing Escherichia coli including Escherichia coli O157’Īdditional information added about other E.coli and more cases added. The amendment history is available from alterations to this document should be controlled in accordance with the local document control process.
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