1. Department of Pathology, University of Otago, Christchurch, New Zealand
2. Microbiology Unit, Canterbury Health Laboratories, Christchurch, New Zealand
3. Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
4. KEMRI Wellcome Trust Research Programme, Kilifi, Kenya
5. Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom
6. Division of Infectious Diseases, Department of Pediatrics, Johns Hopkins School of Medicine, Baltimore, Maryland