{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,7]],"date-time":"2026-11-07T21:19:18Z","timestamp":1794086358465,"version":"4.8.0"},"reference-count":57,"publisher":"American Association for the Advancement of Science (AAAS)","issue":"6742","content-domain":{"domain":["www.science.org"],"crossmark-restriction":true},"short-container-title":["Science"],"published-print":{"date-parts":[[2025,4,4]]},"abstract":"<jats:p>\n                    Colonization of the intestinal lumen precedes invasive infection for a wide range of enteropathogenic and opportunistic pathogenic bacteria. We show that combining oral vaccination with engineered or selected niche-competitor strains permits pathogen exclusion and strain replacement in the mouse gut lumen. This approach can be applied either prophylactically to prevent invasion of nontyphoidal\n                    <jats:italic>Salmonella<\/jats:italic>\n                    strains, or therapeutically to displace an established\n                    <jats:italic>Escherichia coli.<\/jats:italic>\n                    Both intact adaptive immunity and metabolic niche competition are necessary for efficient vaccine-enhanced competition. Our findings imply that mucosal antibodies have evolved to work in the context of gut microbial ecology by influencing the outcome of competition. This has broad implications for the elimination of pathogenic and antibiotic-resistant bacterial reservoirs and for rational microbiota engineering.\n                  <\/jats:p>","DOI":"10.1126\/science.adp5011","type":"journal-article","created":{"date-parts":[[2025,4,4]],"date-time":"2025-04-04T00:30:56Z","timestamp":1743726656000},"page":"74-81","update-policy":"https:\/\/doi.org\/10.34133\/aaas_crossmark","source":"Crossref","is-referenced-by-count":24,"title":["Vaccine-enhanced competition permits rational bacterial strain replacement in the gut"],"prefix":"10.1126","volume":"388","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7440-4604","authenticated-orcid":true,"given":"Verena","family":"Lentsch","sequence":"first","affiliation":[{"name":"Institute for Food, Nutrition and Health, ETH Zurich, Zurich, Switzerland."},{"name":"Medical Research Council (MRC) Translational Immunology Discovery Unit, MRC Weatherall Institute of Molecular Medicine (WIMM), John Radcliffe Hospital, 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