1. 1Department of Internal Medicine II, Infectious Diseases, Immunology, Rheumatology, Pneumology, Medical University of Innsbruck, Anichstr. 35, A-6020 Innsbruck, Austria
2. 2Labor Dr. Heidrich & Kollegen, Stuvkamp 22, D-22081 Hamburg, Germany
3. 3Department of Pulmonary Diseases, Hospital Vöcklabruck, Dr. Wilhelm-Bock-Strasse 1, A-4840, Vöcklabruck, Austria
4. 4Department of Hygiene, Microbiology and Public Health, Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Schöpfstr. 41, A-6020 Innsbruck, Austria