1 Department of Infectious Diseases, Molecular Virology, Center for Integrative Infectious Diseases Research (CIID), University of Heidelberg, Heidelberg, Germany.
2 Division of Biochemistry, Center for Biomedicine and Medical Technology Mannheim (CBTM), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany. georg.stoecklin@medma.uni-heidelberg.de.
3 Center for Molecular Biology of Heidelberg University (ZMBH), Heidelberg, Germany. georg.stoecklin@medma.uni-heidelberg.de.