Abstract
EFSA Supporting PublicationsVolume 18, Issue 3 6486E Joint ECDC-EFSA rapid outbreak assessmentOpen Access Multi-country outbreak of Salmonella Enteritidis sequence type (ST)11 infections linked to poultry products in the EU/EEA and the United Kingdom First published: 01 March 2021 https://doi.org/10.2903/sp.efsa.2021.EN-6486 Requestor: European Commission Question number: EFSA-Q-2020-00724 This article was originally published on the EFSA website www.efsa.europa.eu on 25 February 2021 as part of EFSA's urgent publication procedures AboutPDF ToolsExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinked InRedditWechat Abstract Between May 2018 and December 2020, 193 human cases of Salmonella Enteritidis sequence type (ST)11 were reported in Denmark (2), Finland (4), France (33), Germany (6), Ireland (12), the Netherlands (3), Poland (5), Sweden (6), and the United Kingdom (UK) (122). One in five cases was hospitalised. One death was reported. Fifty percent of the cases were children ≤ 18 years. The most recent case was reported by the UK in December 2020. Epidemiological studies in the UK have identified an increased risk of S. Enteritidis infection associated with the consumption of frozen breaded chicken products. Five batches of non-ready-to-eat poultry products (e.g. breaded products) tested positive for S. Enteritidis matching the outbreak strain. Three of these were manufactured by the Polish Processing Company B where S. Enteritidis was not detected. The five positive batches were traced back to different meat suppliers, slaughterhouses, and/or farms in Poland. Some of these farms had positive results for S. Enteritidis in 2020 (no whole genome sequencing typing). The scarce typing information available for the primary production did not enable the identification of a microbiological link between the positive Polish farms and the contaminated products. Control measures were implemented for the products involved (e.g. withdrawals, recalls). The whole genome sequencing analysis of human and food S. Enteritidis isolates confirmed a cluster with 0-3 allelic differences through single linkage clustering. This, in combination with epidemiological and traceability data, suggests common source(s) in the food chain. There remains a risk of infection in connection with the consumption of implicated poultry products purchased before the withdrawals, if these products are not properly cooked. Unknown source(s) of contamination and the identification of other Salmonella serotypes and S. Enteritidis strains indicate that these poultry products pose a recurrent risk for Salmonella infections in the EU/EEA and the UK. Volume18, Issue3March 20216486E ReferencesRelatedInformation
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