title: Infected cell in trouble: bystander cells ring the bell.
abstract: Infection with intracellular pathogens triggers cytokine production in the infected cells. In this issue of Immunity, Kasper et al. (2010) demonstrate that in certain infections, much of the response is mounted by noninfected neighboring cells.
authors.affiliation: Institute of Microbiology, D-BIOL, ETH Zürich, CH-8093 Zürich, Switzerland. wolf-dietrich.hardt@micro.biol.ethz.ch
authors.forename: Wolf-Dietrich
authors.initials: WD
authors.lastname: Hardt