1. Duke Global Health Institute, Duke University, Durham, North Carolina;
2. Kilimanjaro Christian Medical Centre, Moshi, Tanzania;
3. Centre for International Health, University of Otago, Dunedin, New Zealand;
4. Division of Infectious Diseases, Duke University Medical Center, Durham, North Carolina;
5. Centers for Disease Control and Prevention, Bacterial Special Pathogens Branch, Atlanta, Georgia;
6. Department of Medicine, University of Otago, Dunedin, New Zealand;
7. Department of Mathematics and Statistics, University of Otago, Dunedin, New Zealand;
8. Boyd Orr Centre for Population and Ecosystem Health, Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, United Kingdom;
9. Kilimanjaro Christian Medical University College, Moshi, Tanzania;
10. Mawenzi Regional Referral Hospital, Moshi,Tanzania;
11. Department of Veterinary Medicine and Public Health, Sokoine University of Agriculture, Morogoro, Tanzania