1. Division of Infectious Diseases and International Health; Duke University Medical Center; Durham NC USA
2. Kilimanjaro Christian Medical Centre; Moshi Tanzania
3. School of Geographical and Earth Sciences; University of Glasgow; Glasgow UK
4. Duke Global Health Institute; Duke University; Durham NC USA
5. Department of Pathology; Duke University Medical Center; Durham NC USA
6. Kilimanjaro Christian Medical College; Tumaini University; Moshi Tanzania. Centre for International Health; University of Otago; Dunedin New Zealand