{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,5]],"date-time":"2026-01-05T04:04:44Z","timestamp":1767585884525,"version":"3.41.2"},"reference-count":43,"publisher":"American Society for Microbiology","issue":"10","license":[{"start":{"date-parts":[[2023,10,17]],"date-time":"2023-10-17T00:00:00Z","timestamp":1697500800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2023,10,17]],"date-time":"2023-10-17T00:00:00Z","timestamp":1697500800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"funder":[{"DOI":"10.13039\/100010269","name":"Wellcome Trust","doi-asserted-by":"crossref","award":["092661\/Z\/10\/Z"],"award-info":[{"award-number":["092661\/Z\/10\/Z"]}],"id":[{"id":"10.13039\/100010269","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/100000865","name":"Bill and Melinda Gates Foundation","doi-asserted-by":"crossref","award":["OPP1084259"],"award-info":[{"award-number":["OPP1084259"]}],"id":[{"id":"10.13039\/100000865","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100000780","name":"European Commission","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100000780","id-type":"DOI","asserted-by":"crossref"}]},{"name":"NIHR | NIHR Oxford Biomedical Research Centre"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["Infect Immun"],"published-print":{"date-parts":[[2023,10,17]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>\n            Enteric fever, caused by oral infection with typhoidal\n            <jats:italic>Salmonella<\/jats:italic>\n            serovars, presents as a non-specific febrile illness preceded by an incubation period of 5 days or more. The enteric fever human challenge model provides a unique opportunity to investigate the innate immune response during this incubation period, and how this response is altered by vaccination with the Vi polysaccharide or conjugate vaccine. We find that on the same day as ingestion of typhoidal\n            <jats:italic>Salmonella<\/jats:italic>\n            , there is already evidence of an immune response, with 199 genes upregulated in the peripheral blood transcriptome 12 hours post-challenge (false discovery rate &lt;0.05). Gene sets relating to neutrophils, monocytes, and innate immunity were over-represented (false discovery rate &lt;0.05). Estimating cell proportions from gene expression data suggested a possible increase in activated monocytes 12 hours post-challenge (\n            <jats:italic>P<\/jats:italic>\n            = 0.036, paired Wilcoxon signed-rank test). Furthermore, plasma TNF-\u03b1 rose following exposure (\n            <jats:italic>P<\/jats:italic>\n            = 0.011, paired Wilcoxon signed-rank test). There were no significant differences in gene expression (false discovery rate &lt;0.05) in the 12 hours response between those who did and did not subsequently develop clinical or blood culture confirmed enteric fever or between vaccination groups. Together, these results demonstrate early perturbation of the peripheral blood transcriptome after enteric fever challenge and provide initial insight into early mechanisms of protection.\n          <\/jats:p>","DOI":"10.1128\/iai.00108-23","type":"journal-article","created":{"date-parts":[[2023,9,19]],"date-time":"2023-09-19T18:37:41Z","timestamp":1695148661000},"update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":4,"title":["Early transcriptional responses to human enteric fever challenge"],"prefix":"10.1128","volume":"91","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8313-8643","authenticated-orcid":false,"given":"Amber","family":"Barton","sequence":"first","affiliation":[{"name":"Oxford Vaccine Group, Department of Paediatrics, University of Oxford and the NIHR Oxford Biomedical Research Centre , Oxford, United 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