1. Discipline of Public Health Medicine, Nelson R Mandela School of Medicine, University of KwaZulu-Natal (UKZN), Durban, South Africa
2. Norwegian Centre for Imported and Tropical Diseases, Department of Infectious Diseases Ullevaal, Oslo University Hospital, Oslo, Norway
3. Research Department, Sorlandet Hospital HF, Kristiansand, Norway
4. Department of Global Development and Planning, University of Agder, Kristiansand, Norway