Seven partner institutes collaborate within DZIF at the Hannover - Braunschweig site. The research fields Infections of the Immunocompromised Host and Novel Antibiotics are coordinated from here. Scientists are involved in the establishment of a national transplant cohort and their research projects make considerable contributions towards developing new methods for the treatment and diagnosis of herpesvirus and hepatitis virus infections as well as for the vaccine development for hepatitis C virus. They also focus on developing new approaches for the effective treatment and control of multidrug-resistant bacteria and examine different molecular target sites for active agents. Another key aspect of this site is the identification and development of agent candidates as potential antibiotics.