1. National Institute of Hygiene and Epidemiology, Hanoi, Vietnam;
2. Hanoi Medical University, Hanoi, Vietnam;
3. Vinh Medical University, Nghe An, Vietnam;
4. Association of Public Health Laboratories, Silver Spring, Maryland;
5. National Institute of Infectious Diseases, Tokyo, Japan;
6. Oxford University Clinical Research Unit, Hanoi, Vietnam;
7. Quadram Institute Bioscience, Norwich Research Park, Norwich, United Kingdom;
8. MIVEGEC (IRD-CNRS-Université de Montpellier), LMI DRISA, Centre IRD, Montpellier, France;
9. Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam;
10. Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom