1 Centre for Integrated Critical Care, Melbourne Medical School, University of Melbourne, Melbourne, VIC, Australia; Emergency Department Royal Melbourne Hospital, Melbourne, VIC, Australia.
2 Walimu, Mbarara, Uganda; Department of Clinical Services, Liverpool School of Tropical Medicine, Liverpool, UK.
3 Epidemic Diseases Research Group, University of Oxford, Oxford, UK. Electronic address: jake.dunning@ndm.ox.ac.uk.