{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,28]],"date-time":"2026-07-28T16:39:45Z","timestamp":1785256785905,"version":"3.55.0"},"reference-count":32,"publisher":"Wiley","license":[{"start":{"date-parts":[[2015,1,1]],"date-time":"2015-01-01T00:00:00Z","timestamp":1420070400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"funder":[{"DOI":"10.13039\/501100001602","name":"Science Foundation Ireland","doi-asserted-by":"publisher","award":["13\/SIRG\/2157"],"award-info":[{"award-number":["13\/SIRG\/2157"]}],"id":[{"id":"10.13039\/501100001602","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["BioMed Research International"],"published-print":{"date-parts":[[2015]]},"abstract":"<jats:p>The aim of this study was to assess the occurrence of<jats:italic>L. ivanovii<\/jats:italic>in foods and food processing environments in Ireland, to track persistence, and to characterize the disease causing potential of the isolated strains. A total of 2,006 samples (432 food samples and 1,574 environmental swabs) were collected between March 2013 and March 2014 from 48 food business operators (FBOs) belonging to different production sectors (dairy, fish, meat, and fresh-cut vegetable). Six of the forty-eight FBOs had samples positive for<jats:italic>L. ivanovii<\/jats:italic>on at least one sampling occasion.<jats:italic>L. ivanovii<\/jats:italic>was present in fifteen samples (fourteen environmental samples and one food sample). All but one of those positive samples derived from the dairy sector, where<jats:italic>L. ivanovii<\/jats:italic>prevalence was 1.7%. Six distinguishable pulsotypes were obtained by PFGE analysis, with one pulsotype being persistent in the environment of a dairy food business. Sequence analysis of the<jats:italic>sigB<\/jats:italic>gene showed that fourteen isolates belonged to<jats:italic>L. ivanovii<\/jats:italic>subsp.<jats:italic>londoniensis<\/jats:italic>, while only one isolate was<jats:italic>L. ivanovii<\/jats:italic>subsp.<jats:italic>ivanovii<\/jats:italic>. Cell invasion assays demonstrated that the majority of<jats:italic>L. ivanovii<\/jats:italic>strains were comparable to<jats:italic>L. monocytogenes<\/jats:italic>EGDe in their ability to invade CACO-2 epithelial cells whilst four isolates had significantly higher invasion efficiencies.<\/jats:p>","DOI":"10.1155\/2015\/350526","type":"journal-article","created":{"date-parts":[[2015,10,13]],"date-time":"2015-10-13T16:45:53Z","timestamp":1444754753000},"page":"1-10","source":"Crossref","is-referenced-by-count":15,"title":["Occurrence, Persistence, and Virulence Potential of<i>Listeria ivanovii<\/i>in Foods and Food Processing Environments in the Republic of Ireland"],"prefix":"10.1155","volume":"2015","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9951-4786","authenticated-orcid":true,"given":"Avelino","family":"Alvarez-Ord\u00f3\u00f1ez","sequence":"first","affiliation":[{"name":"Teagasc Food Research Centre, Moorepark, Fermoy, County Cork, Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2269-8927","authenticated-orcid":true,"given":"Dara","family":"Leong","sequence":"additional","affiliation":[{"name":"Teagasc Food Research Centre, Moorepark, Fermoy, County Cork, Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ciara A.","family":"Morgan","sequence":"additional","affiliation":[{"name":"School of Microbiology, University College Cork, Cork, Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Colin","family":"Hill","sequence":"additional","affiliation":[{"name":"School of Microbiology, University College Cork, Cork, Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cormac G. 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