1. Section of Infectious Diseases and Tropical Medicine; Department of Internal Medicine; Medical University Graz; Graz Austria
2. Division of Pulmonology; Department of Internal Medicine; Medical University of Graz; Graz Austria
3. CBmed - Center for Biomarker Research in Medicine; Graz Austria
4. Division of Infectious Diseases; Department of Medicine; University of California-San Diego; San Diego CA USA
5. Division of Haematology; Department of Internal Medicine; Medical University of Graz; Graz Austria