Affiliation: | Institute of Virology, Technische Universität München/Helmholtz Zentrum München, Trogerstr. 30, D-81675 Munich, Germany,1. Center for Molecular Medicine Cologne (ZMMK), Institute for Medical Microbiology, Immunology, and Hygiene, University of Cologne, Josef Stelzmann Str. 19-21, D-50935 Koeln, Germany2. |