1. Division of Infectious Diseases and International Health, Duke University School of Medicine, Durham, North Carolina, USA
2. Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam
3. State Key Laboratory of Emerging Infectious Diseases, Carol Yu Centre for Infection, Department of Microbiology, Li Ka Shing Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong
4. Hainan Medical University–University of Hong Kong Joint Laboratory of Tropical Infectious Diseases, Hainan Medical University, Haikou, Hainan, China
5. Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
6. University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
7. Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom