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Still, the molecular basis for the host cell invasion process has largely been inferred from studies of a few selected cell lines. Our work resolves the mechanisms that\n            <jats:italic>Salmonellae<\/jats:italic>\n            employ to invade prototypical host cell types, i.e., human epithelial, monocyte, and macrophage cells, at a previously unattainable level of temporal and quantitative precision. This highlights efficient bacterium-driven entry into innate immune cells and uncovers a type III secretion system effector module that dominates active bacterial invasion of not only epithelial cells but also monocytes and macrophages. The results are derived from a generalizable method, where we combine barcoding of the bacterial chromosome with mixed consortium infections of cultured host cells. The application of this methodology across bacterial species and infection models will provide a scalable means to address host-pathogen interactions in diverse contexts.\n          <\/jats:p>","DOI":"10.1128\/mbio.00603-19","type":"journal-article","created":{"date-parts":[[2019,5,20]],"date-time":"2019-05-20T14:09:45Z","timestamp":1558361385000},"update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":25,"title":["Barcoded Consortium Infections Resolve Cell Type-Dependent Salmonella enterica Serovar Typhimurium Entry Mechanisms"],"prefix":"10.1128","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9491-4000","authenticated-orcid":false,"given":"Maria Letizia","family":"Di Martino","sequence":"first","affiliation":[{"name":"Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, 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