1. Department of Infection, University College London, London, United Kingdom
2. Division of Infectious Diseases, Stanford University, Stanford, California
3. Department of Zoology, University of Oxford, Oxford, United Kingdom
4. The South African National Bioinformatics Institute, University of the Western Cape, Bellville, South Africa
5. Institute of Evolutionary Biology, University of Edinburgh, Edinburgh, Scotland
6. Medical Research Council Clinical Trials Unit, London, United Kingdom
7. Rega Institute for Medical Research, K.U. Leuven, Belgium
8. Centres for Infection, Health Protection Agency, Colindale, United Kingdom