1. Department of Dermatology; University Hospital; Jena Germany
2. Department of Dermatology; University Hospital Dresden; Dresden Germany
3. Department of Dermatology; University Hospital Kiel; Kiel Germany
4. Laboratory for Medical Microbiology; Rötha/OT Mölbis Germany
5. Department of Dermatology; University Hospital Tübingen; Tübingen Germany
6. Department of Dermatology and Allergology; University Hospital Giessen; Giessen Germany