1. Department of Molecular Medicine II, Medical Faculty
2. Department of Gastroenterology, Hepatology, and Infectious Diseases and
3. Institute of Biochemistry and Molecular Biology II, Medical Faculty; Heinrich Heine University; Düsseldorf Germany
4. Department of Microbiology, Immunology & Molecular Genetics; University of Texas Health Science Center; San Antonio TX
5. Infectious and Inflammatory Diseases Research Center; Sanford Burnham Prebys Medical Discovery Institute; La Jolla CA
6. Institute of Medical Microbiology and Hospital Hygiene; University Hospital, Heinrich Heine University; Düsseldorf Germany
7. Institute of Immunology, Medical Faculty; University of Duisburg-Essen; Essen Germany