Institution: | ? Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany ‡ Center for Infectious Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden § Department of Experimental Virology, Twincore, Hannover, a joint venture between Hannover and the Helmholtz Centre for Infection Research, Braunschweig, Germany ∥ Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, Braunschweig, Germany ¶ Division of Cell Biology and Immune Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany |