1 Department of Primary Care and Public Health, Brighton and Sussex Medical School, Falmer BN1 9PH, UK; Evolution, Behaviour and Environment, School of Life Sciences, University of Sussex, Falmer, UK. Electronic address: [email protected].
2 Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK; Hospital for Tropical Diseases and Department of Dermatology, University College London Hospitals NHS Foundation Trust, London, UK.
3 School of Mathematics, University of Manchester, Manchester, UK.
4 Faculty of Medicine and Global Health Research Institute, University of Southampton, Southampton, UK.
5 Department of Primary Care and Public Health, Brighton and Sussex Medical School, Falmer BN1 9PH, UK; Surrey and Sussex Health Protection Team, Public Health England, Horsham, UK.