1. Department of Environmental Health, Tshwane University of Technology, Pretoria, South Africa
2. Norwich Medical School, University of East Anglia, Norwich, United Kingdom
3. Tyndall Centre for Climate Change Research, University of East Anglia, Norwich, United Kingdom
4. School of Environmental Sciences, University of East Anglia, Norwich, United Kingdom
5. Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, United Kingdom
6. School of Natural and Environmental Sciences, Newcastle University, Newcastle, United Kingdom