1. Nuffield Department of Medicine, University of Oxford, Oxford, UK
2. WHO Collaborating Centre for Enteroviruses and Viral Vaccines, Paris, France
3. Institut Pasteur-Unité de Biologie des Virus Entériques, Paris, France
4. Science Research and Innovation, Medicines and Healthcare Products Regulatory Agency, South Mimms, UK
5. Microbiology Services, NHS Blood Transfusion, London, UK