The University of Sydney, Oxford University Clinical Research Unit, Oxford University Clinical Research Unit, Oxford University Clinical Research Unit, The University of Sydney, The University of Sydney, Hospital for Tropical Diseases, Hanoi Medical University, Imperial College London - MRC Centre for Global Infectious Disease Analysis, Imperial College London - MRC Centre for Global Infectious Disease Analysis, Woolcock Institute of Medical Research, Vietnam, The University of Sydney - Faculty of Medicine and Health, The University of Sydney - Sydney Institute for Infectious Diseases, The University of Sydney - Marie Bashir Institute for Infectious Diseases and Biosecurity, The University of Sydney, The University of Sydney, The University of Sydney - Sydney Institute for Infectious Diseases, The University of Sydney, Hospital of Tropical Diseases - Oxford University Clinical Research Unit and The University of Sydney