1. Department of Microbiology and Immunology, Muhimbili University of Health and Allied Sciences, MUHAS, Dar es Salaam, Tanzania
2. Department of Clinical Science, University of Bergen, Bergen, Norway
3. Norwegian National Advisory Unit for Tropical Infectious Diseases, Haukeland University Hospital, Bergen, Norway
4. Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Liverpool L3 5QA, UK
5. Department of Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS, UK