1. Department of Pathology University of Cambridge Cambridge UK
2. Laboratory of Immune Systems Biology, National Institute of Allergy and Infectious Diseases National Institutes of Health Bethesda MD USA
3. Department of Biomedical Science University of Sheffield, Firth Court Sheffield UK
4. Department of Veterinary Medicine University of Cambridge Cambridge UK
5. Department of Infectious Disease Imperial College London London UK
6. Royal Brompton Hospital Guy's and St Thomas' NHS Foundation Trust London UK
7. UCL Institute of Ophthalmology University College London London UK