Affiliation: | 1. Department of Care of the Elderly, Royal Gwent Hospital, Newport, UK;2. Department of Pathology, Royal Gwent Hospital, Newport, UK;3. Division of Infection & Immunity, Cardiff University, Cardiff, UK;4. Department of Dermatology, Royal Gwent Hospital, Newport, UK;5. Welsh Institute of Dermatology, Glamorgan House, Cardiff, UK |