Procedures to stimulate or suppress the immune system are developed in the Department of Vaccines and Infection Models. These include vaccines on innovative technology platforms, e.g. novel inactivation methods or plasmid DNA. As such, efficient vaccines can be produced quickly and inexpensively. An S3 laboratory facilitates work with highly infectious pathogens. In-vivo and in-vitro model systems are also generated and used to develop diagnostic and therapeutic agents.