1. Antiviral Drug Discovery Unit, Oxford Glycobiology Institute, Department of Biochemistry, University of Oxford, Oxford OX1 3QU, UK
2. Kavli Institute for Nanoscience Discovery, University of Oxford, Oxford OX1 3QU, UK
3. Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, UK
4. Centre for Medicine Discovery, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7BN, UK