Affiliation: | 1Department of Cell and Molecular Biology, BMC, Uppsala University, Uppsala, Sweden;2Department of Microbiology, National Veterinary Institute, Uppsala, Sweden;3Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden;4Christian-Albrechts-University of Kiel, Institute of Clinical Molecular Biology, Kiel, Germany;University of Zurich, SWITZERLAND |