title: Host defenses trigger salmonella's arsenal.
abstract: Salmonella survives in macrophages by using a molecular syringe to deliver proteins into the host-cell cytosol where they manipulate phagocyte physiology. Arpaia and colleagues (Arpaia et al., 2011) show that deployment of this virulence factor is triggered by the very responses that are intended to confer host resistance.
authors.affiliation: Department of Medical Microbiology and Immunology, School of Medicine, University of California at Davis, One Shields Avenue, Davis, CA, USA.
authors.forename: A Marijke
authors.initials: AM
authors.lastname: Keestra
authors.affiliation: Department of Medical Microbiology and Immunology, School of Medicine, University of California at Davis, One Shields Avenue, Davis, CA, USA. Electronic address: ajbaumler@ucdavis.edu.
authors.forename: Andreas J
authors.initials: AJ
authors.lastname: Bäumler