1. National Institute for Medical Research, Mwanza Centre, Tanzania
2. National Institute for Medical Research, Muhimbili Centre, Tanzania
3. Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Denmark
4. Clinical Research Centre, University of Copenhagen, Hvidovre Hospital, Hvidovre, Denmark
5. Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
6. Department of Infectious Diseases, Odense University Hospital, Odense, Denmark
7. UCL-Institute of Child Health, London, UK