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Based on the Belgian <jats:italic>Salmonella<\/jats:italic> surveillance programme and focusing on poultry, the overarching aim of this study was to highlight possible <jats:italic>Salmonella<\/jats:italic> transmissions across the food chain (FC). For this purpose, firstly, the prevalence patterns of <jats:italic>Salmonella<\/jats:italic> (targeted and the most prevalent non\u2010targeted) serotypes along the FC were described over time. Secondly, the effectiveness of the control measures against vertical transmission (breeders to 1\u2010day\u2010old broiler and layer chicks) was indirectly assessed by looking into the odds of targeted serotypes detection. Thirdly, it was appraised if <jats:italic>Salmonella<\/jats:italic> prevalence can significantly increase during broilers and layers production. In addition, it was tested if being tested negative at the end of production in broilers when tested positive at the entrance is serotype dependent (targeted vs. non\u2010targeted serotypes). Results showed that, firstly, the prevalence patterns of the listed serotypes were inconstant over time and across the FC. Secondly, the odds of <jats:italic>Salmonella<\/jats:italic> targeted serotype detection in 1\u2010day\u2010old broiler and in 1\u2010day\u2010old layer flocks were lower than in breeder flocks while, thirdly, infection during broiler and layer production can lead to significant increase in positivity in subsequent samples. Finally, being infected by a targeted or by non\u2010targeted serotype at the entrance of the flock poorly reflects the <jats:italic>Salmonella<\/jats:italic> status at the end of production. Note that this study did not make a distinction between the different sources of contamination and the effects of sampling methods and isolation methods should be subject to further investigation.<\/jats:p>","DOI":"10.1111\/zph.12998","type":"journal-article","created":{"date-parts":[[2022,9,9]],"date-time":"2022-09-09T06:31:20Z","timestamp":1662705080000},"page":"22-45","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Assessing evidence of a potential <i>Salmonella<\/i> transmission across the poultry food chain"],"prefix":"10.1111","volume":"70","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7490-7903","authenticated-orcid":false,"given":"Micka\u00ebl","family":"Cargnel","sequence":"first","affiliation":[{"name":"Department of epidemiology and public health, Service of veterinary epidemiology Sciensano  Brussels Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria\u2010Eleni","family":"Filippitzi","sequence":"additional","affiliation":[{"name":"Department of epidemiology and public health, Service of veterinary epidemiology Sciensano  Brussels Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dieter","family":"Van Cauteren","sequence":"additional","affiliation":[{"name":"Department of epidemiology and public health, Service of epidemiology of infectious diseases Sciensano  Brussels Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wesley","family":"Mattheus","sequence":"additional","affiliation":[{"name":"Department of human infectious diseases, Service of bacterial diseases Sciensano  Brussels Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nadine","family":"Botteldoorn","sequence":"additional","affiliation":[{"name":"Dierengezondheidszorg Vlaanderen  Torhout Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ludivine","family":"Cambier","sequence":"additional","affiliation":[{"name":"Federal Agency for the Safety of the Food Chain  Brussels Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sarah","family":"Welby","sequence":"additional","affiliation":[{"name":"Department of epidemiology and public health, Service of veterinary epidemiology Sciensano  Brussels Belgium"},{"name":"UCB Brussels Belgium  Brussels Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,9,8]]},"reference":[{"key":"e_1_2_12_2_1","doi-asserted-by":"publisher","DOI":"10.1128\/microbiolspec.PFS\u20100002\u20102014"},{"key":"e_1_2_12_3_1","doi-asserted-by":"publisher","DOI":"10.3382\/ps.2013\u201003401"},{"key":"e_1_2_12_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cmi.2015.12.004"},{"key":"e_1_2_12_5_1","doi-asserted-by":"publisher","DOI":"10.4315\/0362\u2010028x\u201070.10.2251"},{"key":"e_1_2_12_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.scitotenv.2018.10.272"},{"key":"e_1_2_12_7_1","doi-asserted-by":"publisher","DOI":"10.1128\/AAC.04203\u201014"},{"key":"e_1_2_12_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.puhe.2014.02.002"},{"key":"e_1_2_12_9_1","doi-asserted-by":"publisher","DOI":"10.1080\/1040841X.2017.1368998"},{"key":"e_1_2_12_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/s0167\u20105877(99)00016\u20101"},{"key":"e_1_2_12_11_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0201031"},{"key":"e_1_2_12_12_1","doi-asserted-by":"publisher","DOI":"10.1086\/342885"},{"key":"e_1_2_12_13_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12917\u2010017\u20101050\u20103"},{"key":"e_1_2_12_14_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0217057"},{"key":"e_1_2_12_15_1","unstructured":"Ejustice. 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(2012a).Commission Regulation (EU) No 200\/2012 of March 8 2012 concerning a Union target for the reduction of Salmonella enteritidis and Salmonella Typhimurium in flocks of broilers as provided for in Regulation (EC) No 2160\/2003 of the European Parliament and of the Council.https:\/\/eur\u2010lex.europa.eu\/legal\u2010content\/EN\/TXT\/?uri=CELEX%3A02012R0200\u201020190310"},{"key":"e_1_2_12_26_1","unstructured":"European Union. (2012b).Commission Regulation (EU) No 1190\/2012 of December 12 2012 concerning a Union target for the reduction of Salmonella Enteritidis and Salmonella Typhimurium in flocks of turkeys as provided for in Regulation (EC) No 2160\/2003 of the European Parliament and of the Council.http:\/\/data.europa.eu\/eli\/reg\/2012\/1190\/2019\u201003\u201010"},{"key":"e_1_2_12_27_1","unstructured":"Federal Agency for the Security of the Food chain. 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