1. Infectious Diseases Unit, 1. Department of Medicine University Medical Center Hamburg‐Eppendorf Hamburg Germany
2. German Center for Infection Research (DZIF) Partner Site Hamburg‐Lübeck‐Borstel‐Riems Hamburg Germany
3. Department of Tropical Medicine Bernhard Nocht Institute for Tropical Medicine Hamburg Germany
4. Institute of Transfusion Medicine University Medical Center Hamburg‐Eppendorf Hamburg Germany
5. Institute of Medical Microbiology, Virology and Hygiene University Medical Center Hamburg‐Eppendorf Hamburg Germany
6. Center for Infectious Disease and Vaccine Research La Jolla Institute for Immunology (LJI) La Jolla CA USA