Outbreak of Shiga toxin-producing E. coli O157 associated with consumption of watercress, United Kingdom, August to September 2013

N Launders; L Byrne; N Adams; K Glen; C Jenkins; D Tubin-Delic; M Locking; C Williams; D Morgan; on behalf of the Outbreak Control Team

doi:10.2807/1560-7917.ES2013.18.44.20624

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Outbreak of Shiga toxin-producing E. coli O157 associated with consumption of watercress, United Kingdom, August to September 2013
N Launders¹ , L Byrne¹ , N Adams¹ , K Glen¹ , C Jenkins² , D Tubin-Delic³ , M Locking⁴ , C Williams⁵ , D Morgan¹ , on behalf of the Outbreak Control Team^1,2,3,4,5
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Affiliations: ¹ Gastrointestinal, Emerging and Zoonotic Infections Department, Public Health England, London, United Kingdom ² Gastrointestinal Bacteria Reference Unit, Public Health England, London, United Kingdom ³ Incidents Branch, Food Standards Agency, London, United Kingdom ⁴ Gastrointestinal and Zoonoses team, Health Protection Scotland, Glasgow, United Kingdom ⁵ Health Protection Division, Public Health Wales, Cardiff, United Kingdom

Correspondence:
N Launders
naomi.launders phe.gov.uk
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Citation style for this article: Launders N, Byrne L, Adams N, Glen K, Jenkins C, Tubin-Delic D, Locking M, Williams C, Morgan D, on behalf of the Outbreak Control Team. Outbreak of Shiga toxin-producing E. coli O157 associated with consumption of watercress, United Kingdom, August to September 2013. Euro Surveill. 2013;18(44):pii=20624. https://doi.org/10.2807/1560-7917.ES2013.18.44.20624 Received: 17 Oct 2013

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Abstract

An increase in the number of cases of Shiga toxin-producing Escherichia coli O157 PT 2 stx2 infection was reported in the United Kingdom on 9 September 2013. Of the 19 cases, 13 were interviewed, of which 10 reported consuming watercress purchased from one retailer. The retailer recalled pre-packed bagged salads containing watercress on 12 September. The descriptive epidemiology was supported by a case-case study performed after control measures were implemented. .