1. School of Social & Political Sciences/School of Health and Wellbeing, University of Glasgow, Glasgow G12 8QQ, UK
2. KEMRI-Wellcome Trust Research Program, Kilifi P.O. Box 230, Kenya
3. Kilimanjaro Clinical Research Institute, Kilimanjaro Christian Medical Centre, Moshi P.O. Box 2236, Tanzania
4. Directorate of Research and Consultancies, Kilimanjaro Christian Medical University College, Moshi P.O. Box 2240, Tanzania
5. Department of Microbiology and Immunology, Weill-Bugando School of Medicine, Catholic University of Health and Allied Sciences, Bugando Medical Centre, Mwanza P.O. Box 1464, Tanzania
6. School of Biodiversity, One Health & Veterinary Medicine, University of Glasgow, Glasgow G12 8QQ, UK
7. Nelson Mandela African Institution of Science and Technology, Arusha P.O. Box 447, Tanzania