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Updated Parameters for Listeria monocytogenes Dose–Response Model Considering Pathogen Virulence and Age and Sex of Consumer

dc.contributor.authorPouillot, Régis
dc.contributor.authorKiermeier, Andreas
dc.contributor.authorGuillier, Laurent
dc.contributor.authorCadavez, Vasco
dc.contributor.authorSanaa, Moez
dc.date.accessioned2024-05-16T15:42:33Z
dc.date.available2024-05-16T15:42:33Z
dc.date.issued2024
dc.description.abstractBetter knowledge regarding the Listeria monocytogenes dose-response (DR) model is needed to refine the assessment of the risk of foodborne listeriosis. In 2018, the European Food Safety Agency (EFSA) derived a lognormal Poisson DR model for 14 different age-sex sub-groups, marginally to strain virulence. In the present study, new sets of parameters are developed by integrating the EFSA model for these sub-groups together with three classes of strain virulence characteristics ("less virulent", "virulent", and "more virulent"). Considering classes of virulence leads to estimated relative risks (RRs) of listeriosis following the ingestion of 1000 bacteria of "less virulent" vs. "more virulent" strains ranging from 21.6 to 24.1, depending on the sub-group. These relatively low RRs when compared with RRs linked to comorbidities described in the literature suggest that the influence of comorbidity on the occurrence of invasive listeriosis for a given exposure is much more important than the influence of the virulence of the strains. The updated model parameters allow better prediction of the risk of invasive listeriosis across a population of interest, provided the necessary data on population demographics and the proportional contribution of strain virulence classes in food products of interest are available. An R package is made available to facilitate the use of these dose-response models.pt_PT
dc.description.sponsorshipThe FAO/WHO Joint Expert Meeting on Microbiological Risk Assessment (JEMRA) on Listeria monocytogenes in foods, held in Rome, Italy from October 24 to 28, 2022, recommended the development of a new dose-response model for Listeria monocytogenes that considers consumer susceptibility and virulence characterization of L. monocytogenes. The model was finalized during JEMRA on Listeria monocytogenes in foods Part 2: Risk Assessment Models, which was held in Geneva, Switzerland from 29 May to 2 June 2023. The authors thank the JEMRA experts for Part 1 (https://www.who.int/publications/m/item/jemra-of-listeria-monocytogenes-in-foods) and Part 2, (https://www.who.int/publications/m/item/jemra-of-listeria-monocytogenes-in-foods-part-2-risk-assessment-models) as well as FAO/WHO secretariat for their suggestions and feedback. The authors would like to thank Ursula Gonzales-Barron.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPouillot, Régis; Kiermeier, Andreas; Guillier, Laurent; Cadavez, Vasco; Sanaa, Moez (2024). Updated Parameters for Listeria monocytogenes Dose–Response Model Considering Pathogen Virulence and Age and Sex of Consumer. Foods. EISSN 2304-8158. 13:5, p. 1-15pt_PT
dc.identifier.doi10.3390/foods13050751pt_PT
dc.identifier.eissn2304-8158
dc.identifier.urihttp://hdl.handle.net/10198/29775
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectListeria monocytogenespt_PT
dc.subjectHazard characterizationpt_PT
dc.subjectDose–responsept_PT
dc.subjectVirulencept_PT
dc.subjectClonal complexpt_PT
dc.titleUpdated Parameters for Listeria monocytogenes Dose–Response Model Considering Pathogen Virulence and Age and Sex of Consumerpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage15pt_PT
oaire.citation.issue5pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleFoodspt_PT
oaire.citation.volume13pt_PT
person.familyNameCadavez
person.givenNameVasco
person.identifierR-000-HDG
person.identifier.ciencia-id441B-01AB-A12E
person.identifier.orcid0000-0002-3077-7414
person.identifier.ridA-3958-2010
person.identifier.scopus-author-id9039121900
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication57b410e9-f6b7-42ff-ab3d-b526278715eb
relation.isAuthorOfPublication.latestForDiscovery57b410e9-f6b7-42ff-ab3d-b526278715eb

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