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Consecutive salmonella outbreaks traced to the same bakery

Evans, Meirion Rhys, Tromans, J. P., Dexter, E. L. S., Ribeiro, C. D. and Gardner, D. 2009. Consecutive salmonella outbreaks traced to the same bakery. Epidemiology and Infection 116 (02) , pp. 161-167. 10.1017/S0950268800052390

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Two consecutive community outbreaks of Salmonella enteritidis phage type 4 (PT4) traced to the same bakery occurred in Cardiff, Wales during August–September 1992. In the first outbreak, illness was associated with eating custard slices (odds ratio 23·8, 95% confidence interval 6·5–94·4, P < 0·0001), and in the second, with eating fresh cream cakes (odds ratio 15·8, 95% confidence interval 1·6–374, P = 0·004). Environmental investigations implicated cross-contamination during preparation of the cold-custard mix as the cause of the first outbreak, and inadequate cleaning and disinfection of nozzles used for piping cream in the second outbreak. S. enteritidis PT4 was isolated from fresh cream sponge cake retained by a case and from two fresh cream cakes and four environmental swabs obtained at the bakery. This incident illustrates the hazard of widespread environmental contamination with salmonella and the need for thorough environmental cleansing of any premises implicated in an outbreak of food poisoning.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Subjects: R Medicine > R Medicine (General)
Publisher: Cambridge University Press
ISSN: 0950-2688
Last Modified: 21 Aug 2019 02:34

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