1. University of Regensburg, Regensburg, Germany
2. Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
3. Regensburg University Hospital, Regensburg, Germany
4. Technical University of Munich, Munich, Germany
5. University of Leipzig, Leipzig, Germany
6. Ludwig-Maximilians-Universität, Munich, Germany
7. Bernhard Nocht Institute for Tropical Medicine
8. Hamburg, Germany
9. Justus-Liebig-University Gießen, Gießen, Germany
10. Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany