1. Department of Microbiology, University of Medicine 1, Yangon, Myanmar
2. Centre for International Health, University of Otago, Dunedin, New Zealand
3. Southern Community Laboratories, Dunedin Hospital
4. Department of Immunology and Microbiology, University of Otago, Dunedin
5. Department of Pathology, University of Otago, Christchurch, New Zealand
6. Department of Preventive and Social Medicine
7. Department of Medicine, University of Medicine 1, Yangon, Myanmar
8. Department of Medicine, University of Otago, Christchurch, New Zealand