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Eighty cases were hospitalized, with two cases of haemolytic uraemic syndrome and one death reported. Routine investigative data were used to generate a hypothesis but the subsequent case-control study was inconclusive. A second, more detailed, hypothesis generation exercise identified consumption or handling of vegetables as a potential mode of transmission. A second case-control study demonstrated that cases were more likely than controls to live in households whose members handled or prepared leeks bought unwrapped [odds ratio (OR) 40, 95% confidence interval (CI) 2\u00b708-769\u00b74], and potatoes bought in sacks (OR 13\u00b713, 95% CI 1\u00b719-145\u00b73). This appears to be the first outbreak of STEC O157 infection linked to the handling of leeks.<\/jats:p>","DOI":"10.1017\/s0950268815001016","type":"journal-article","created":{"date-parts":[[2015,6,4]],"date-time":"2015-06-04T05:34:29Z","timestamp":1433396069000},"page":"171-181","update-policy":"https:\/\/doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":33,"title":["A large Great Britain-wide outbreak of STEC O157 phage type 8 linked to handling of raw leeks and potatoes"],"prefix":"10.1017","volume":"144","author":[{"given":"N.","family":"LAUNDERS","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M. 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