1. Department of Dermatology Lozano Blesa University Clinical Hospital Zaragoza Spain
2. Department of Pathology Lozano Blesa University Clinical Hospital Zaragoza Spain
3. National Center of Microbiology, Institute of Health Carlos III (ISCIII) Flu and Respiratory Virus Unit Madrid Spain
4. Department of Microbiology Lozano Blesa University Clinical Hospital Zaragoza Spain