1 Mahidol-Oxford Research Unit (MORU), Faculty of Tropical Medicine, Mahidol University, Bangkok, 10400, Thailand. Arjen@tropmedres.ac.
2 Oxford Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK. Arjen@tropmedres.ac.
3 Department of Intensive Care, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands. Arjen@tropmedres.ac.
4 Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam.
5 Department of Critical Care, Johannesburg Hospital and University of the Witwatersrand, Johannesburg, South Africa.