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