Author information: (1)Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, UK. (2)Division of Structural Biology, Nuffield Department of Medicine, University of Oxford, The Wellcome Centre for Human Genetics, Oxford, UK; Chinese Academy of Medical Science (CAMS) Oxford Institute (COI), University of Oxford, Oxford, UK. (3)Diamond Light Source Ltd, Harwell Science & Innovation Campus, Didcot, UK. (4)Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, UK; Chinese Academy of Medical Science (CAMS) Oxford Institute (COI), University of Oxford, Oxford, UK. (5)Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, UK; Oxford University Hospitals NHS Foundation Trust, Oxford, UK. (6)Division of Structural Biology, Nuffield Department of Medicine, University of Oxford, The Wellcome Centre for Human Genetics, Oxford, UK. (7)Oxford University Hospitals NHS Foundation Trust, Oxford, UK; Peter Medawar Building for Pathogen Research, Oxford, UK; Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK. (8)Oxford University Hospitals NHS Foundation Trust, Oxford, UK. (9)Oxford University Hospitals NHS Foundation Trust, Oxford, UK; Peter Medawar Building for Pathogen Research, Oxford, UK; Translational Gastroenterology Unit, University of Oxford, Oxford, UK. (10)Oxford Vaccine Group, Department of Paediatrics, University of Oxford, Oxford, UK. (11)Nuffield Department of Medicine, University of Oxford, Oxford, UK. (12)Viral Pseudotype Unit, Medway School of Pharmacy, University of Kent and Greenwich Chatham Maritime, Kent, UK. (13)Oxford University Hospitals NHS Foundation Trust, Oxford, UK; Peter Medawar Building for Pathogen Research, Oxford, UK; Translational Gastroenterology Unit, University of Oxford, Oxford, UK; NIHR Oxford Biomedical Research Centre, Oxford, UK. (14)Oxford University Hospitals NHS Foundation Trust, Oxford, UK; Peter Medawar Building for Pathogen Research, Oxford, UK; Centre For Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK; Mahidol-Oxford Tropical Medicine Research Unit, Department of Medicine, University of Oxford, Oxford, UK. (15)Oxford Vaccine Group, Department of Paediatrics, University of Oxford, Oxford, UK; NIHR Oxford Biomedical Research Centre, Oxford, UK. (16)Chinese Academy of Medical Science (CAMS) Oxford Institute (COI), University of Oxford, Oxford, UK; Oxford Vaccine Group, Department of Paediatrics, University of Oxford, Oxford, UK. (17)Peter Medawar Building for Pathogen Research, Oxford, UK; Department of Paediatrics, University of Oxford, Oxford, UK. (18)Division of Structural Biology, Nuffield Department of Medicine, University of Oxford, The Wellcome Centre for Human Genetics, Oxford, UK. Electronic address: liz@strubi.ox.ac.uk. (19)Division of Structural Biology, Nuffield Department of Medicine, University of Oxford, The Wellcome Centre for Human Genetics, Oxford, UK. Electronic address: dongdong.imm.ox.ac.uk@gmail.com. (20)Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, UK; Chinese Academy of Medical Science (CAMS) Oxford Institute (COI), University of Oxford, Oxford, UK. Electronic address: juthathip.mongkolsapaya@well.ox.ac.uk. (21)Division of Structural Biology, Nuffield Department of Medicine, University of Oxford, The Wellcome Centre for Human Genetics, Oxford, UK. Electronic address: ren@strubi.ox.ac.uk. (22)Division of Structural Biology, Nuffield Department of Medicine, University of Oxford, The Wellcome Centre for Human Genetics, Oxford, UK; Chinese Academy of Medical Science (CAMS) Oxford Institute (COI), University of Oxford, Oxford, UK; Diamond Light Source Ltd, Harwell Science & Innovation Campus, Didcot, UK. Electronic address: dave@strubi.ox.ac.uk. (23)Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, UK; Chinese Academy of Medical Science (CAMS) Oxford Institute (COI), University of Oxford, Oxford, UK. Electronic address: gavin.screaton@medsci.ox.ac.uk.