1 Laboratory of Viral Zoonotics, Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 OES, UK.
2 Viral Pseudotype Unit, Medway School of Pharmacy, University of Kent, Medway, UK.
3 Institute of Medical Microbiology and Hygiene, University of Regensburg, Regensburg, Germany.
4 Clinical Immunology Department, Royal Papworth NHS Foundation Trust, Cambridge, UK.
5 Laboratory of Viral Zoonotics, Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 OES, UK. Electronic address: [email protected].